Lightning is defined as the electrostatic discharge during which electrically charged regions in the atmosphere or one which is present in the ground, neutralize temporarily and release energy. The steps in which lightning occur is D,B,C,A.
Lightning is divided into two types. In one type, flashes occurred when one channel connect cloud to the ground. In the second type, no channel is connected to the ground. It is known as in-cloud lightning.
In the first step of the lightning, collisions between ice particles and liquid droplets are occurred and charge separation takes place within the cloud.
In the second step, the positive charges which is formed by collision flows upward toward the cloud.
In the third step, negative charges from the base of the cloud stream down towards the surface. Due to the stream down, stepped leaders are formed.
In the fourth and the final step, the connection between postive streamers and stepped leaders create a lightining strikes.
Therefore, the correct steps to form a lightning is D,B,C,A.
To know more about lightning
https://brainly.com/question/24317640
#SPJ4
If a molecule has a square planar molecular geometry, what must be its hybridization?.
The hybridization of a molecule with a square planar molecular geometry must be sp3d2.
What is hybridization?Hybridization can be defined as the process of combining two atomic orbitals to create a new type of hybridized orbitals.
Hybridization is primarily carried out by atomic orbitals of the same energy level. However, both fully filled and half-filled orbitals can participate in this process if their energies are equal.
Features of HybridizationHybridization occurs between atomic orbitals with equal energies.The number of hybrid orbitals formed equals the number of atomic orbitals that mix.It is not required for all half-filled orbitals to participate in hybridization. Even orbitals that are completely filled but have slightly varying energy can participate.Hybridization occurs only during bond formation, not in a single gaseous atom.If the hybridization of the molecule is known, the molecule’s shape can be predicted.The larger lobe of the hybrid orbital is always positive, while the smaller lobe on the opposite side is always negative.Types of HybridizationHybridization can be classified as sp3, sp2, sp, sp3d, sp3d2, or sp3d3 based on the types of orbitals involved in mixing.
Learn more about hybridization:https://brainly.com/question/22765530
#SPJ1
eukaryotic dna is located in the (fill the blank), and its message reaches the ribosome by passing through the (fill the blank).
Eukaryotic DNA is located in the nucleus and its message reaches the ribosome by passing through the nuclear pore.
What is meant by eukaryotic DNA ?Eukaryotic DNA has telomeres at each end to prevent degradation and is linear, compacted into chromosomes by histones. Circular DNA and smaller, transferrable DNA plasmids are both found in prokaryotes. Nuclear DNA and mitochondrial DNA are both present in eukaryotic cells.
Eukaryote refers to any cell or organism with a separate nucleus. A nuclear membrane encircles the nucleus of a eukaryotic cell, which contains the distinct chromosomes (bodies that hold the genetic material).
Each chromosome's DNA molecule, which has the shape of a double helix, is first wound around histone protein clusters. The smallest unit of DNA packing structure is a nucleosome, which is made up of about 200 base pairs of DNA wrapped around eight histone proteins.
To learn more about eukaryotic DNA refer to:
https://brainly.com/question/25529376
#SPJ4
which of the following is the correct mechanism for the sn2 reaction that occurs when chlorocyclohexane is treated with a cyanide ion?
Sn2 reaction is a reaction which is known to be nucleophilic. This reaction occurs step by step and is a type of substitution reaction.
In Sn2 reaction a lone pair from the nucleophile attacks on a place of electron deficiency.
This reaction follows a second order kinetics. It is single step reaction and both bond forming and breaking will occur at the same time.
The chlorocyclohexane is a single bonded hexane structure.
It has Cl on the ortho position.
Cyanide is a triple bonded structure, sharing a triple bond between the C and N. It also has 2 lone pairs and a negative charge on C.
When we react these two compounds then after the Sn2 reaction, we get a new structure called cyno-cyclohexane. In this reaction, the cyanide will attack at ortho place replacing Cl with CN and Cl will be released.
Therefore, in this Sn2 reaction, the new compound formed will be cyno-cyclo-hexane.
To learn more about reaction, refer: https://brainly.com/question/17434463
#SPJ4
why is it necessary to indicate the state (s, i, g, aq) of products and reactants when writing a thermochemical equation?
In a thermochemical equation, the reactants' and products' physical states must be taken into account because they affect the value of H. In the course of an endothermic reaction, the environment provides energy.
What is Thermochemical Equations?The only difference between thermochemical equations and other balanced equations is that they also indicate the heat flow for the reaction. The equation's right side includes a list of the heat flow denoted by the letter H.Kilojoules, or kJ, are the most widely used units. Two thermochemical equations are provided here:H2 (g) + ½ O2 (g) → H2O (l); ΔH = -285.8 kJ
HgO (s) → Hg (l) + ½ O2 (g); ΔH = +90.7 kJ
The enthalpy of a substance depends upon temperature. Ideally, you should specify the temperature at which a reaction is carried out. When you look at a table of heats of formation, notice that the temperature of the ΔH is given. For homework problems, and unless otherwise specified, the temperature is assumed to be 25°C. In the real world, the temperature may be different and thermochemical calculations can be more difficult.A substance's enthalpy is temperature-dependent. The ideal situation would be to state the temperature at which a reaction occurs. Observe that the temperature of the H is mentioned in a table of formation temperatures. The temperature is assumed to be 25°C for homework problems unless otherwise stated. Calculations involving thermochemistry may be more challenging in the real world due to temperature variations.To Learn more about thermochemical equation refer to:
https://brainly.com/question/21492209
#SPJ4
how can we tell the temperature of the substance as it is being heated by the bunsen burner? (a) we already know the temperature of a bunsen burner flame. (b) the temperature is shown on the display at the lower left. (c) we can use the flame color to tell the temperature of the substance being heated.
Answer:
(b) the temperature is shown on the display at the lower left.
Explanation:
Suppose 3.62g of barium nitrate is dissolved in 350. mL of a 71.0mM aqueous solution of sodium chromate. Calculate the final molarity of barium cation in the solution. You can assume the volume of the solution doesn't change when the barium nitrate is dissolved in it. Round your answer to 3 significant digits.Solving limiting reactant problems in solution Suppose 3.62 g of barium nitrate is dissolved in 350 mL of a 71.0 m M aqueous solution of sodium chromate. Calculate the final molarity of barium cation in the solution. You can assume the volume of the solution doesn't change when the barium nitrate is dissolved in it. Round your answer to 3 significant digits. OM х 5 2 ? Explanation Check
Molar concentration of barium cations in solution of3 .62g of barium nitrate is dissolved in 350. mL of a 71.0mM aqueous solution of sodium chromate is 0.039M
Molar concetration of barium cation can be calculate as follows:
first we should make balanced equation
Ba(NO₃)₂(aq) + Na₂CrO₄(aq) → BaCrO₄(s) + 2NaNO₃(aq)
while,
Mass of barium nitrate = 3.62 grams
Volume of 0.071 M sodium chromate 350 mL
Then we can calculate the number of moles of Ba(NO₃)₂
mole = mass / molar mass
Moles = 3.62 grams / 261.34 grams/mole
Moles = 0.0138 Moles
Then, calculate the number of moles of Na₂CrO₄
moles = molarity * volume
moles Na2CrO4 = 0.071 * 0.35 liters
mol Na2CrO4 = 0.0248 mol
so, we can calculate limiting reactants
Since Na₂CrO₄ is in excess, all Ba(NO₃)₂ is consumed and reacts to BaCrO₄ in the form of Ba²⁺.
then we can calculate the number of moles of Ba²⁺
nBa²⁺=n(BaCrO₄) =n(Ba(NO₃)₂) = 0.0138 Moles
then calculate Ba²⁺ Molarity
C=n/v,
C(Ba²⁺)=0.0138 Moles/0.350 = 0.039M
therefore, Molar concentration of barium cations in solution is 0.039M
learn more about concentration here https://brainly.com/question/15544154
#SPJ4
Which of the following molecules is not involved in the maintenance of the resting membrane potential?a. potassium cations
b. ATP
c. voltage-gated ion channels
d. calcium cations
Calcium cations are molecules that do not play a role in preserving the resting membrane potential.
How much membrane potential is present at rest?The inward rectifier potassium channel, also known as an anomalous rectifier potassium channel, is the specific class of potassium channel that controls the resting membrane potential. It is incredibly low when calcium is at rest. The resting membrane potential does not, therefore, include calcium.Depending on their cell type, every cell in the body has a distinctive resting membrane potential. The three types of muscle cells—smooth, skeletal, and cardiac—and neurons, however, are of primary significance.Calcium cations are molecules that do not play a role in preserving the resting membrane potential.To learn more about Resting membrane potential refer to:
https://brainly.com/question/15459255
#SPJ4
What are the 4 types of citation?.
The 4 types of citations are APA, MLA, Chicago, Turabian
Giving credit to others for their creative and intellectual works that you used to support your research can be done through citations. Additionally, it can be used to track down specific sources and prevent plagiarism. A citation typically contains the author's name, the date, the name of the publisher, the name of the journal, or a DOI (Digital Object Identifier).
APA- Education, psychology, and the sciences all use APA (American Psychological Association).MLA -The Humanities employ MLA (Modern Language Association) style.Chicago and Turabian -Business, history, and the fine arts typically use the Chicago/Turabian referencing style.Read more about citations at:
brainly.com/question/28365429
#SPJ4
How do you check a radical equation?.
On one end of the equation, isolate any of the radical terms. Increase all sides of the equation by the index's power. Exist any new radicals? In that case, resolve the new equation.
What is a radical instance?, is a prominent illustration of a radical. Three-electron molecules like triplet oxygen and triplet carbene (CH. 2) are two more examples. There are numerous techniques to produce radicals, but most commonly, redox processes are used.
What constitutes radical beliefs?Radical politics refers to the desire to modify or supplant the core values and standards or political system, frequently through social transformation, structural change, revolution, or radical reform. Radicalization is the process of embracing extreme viewpoints.
To know more about radical visit:
https://brainly.com/question/17192138
#SPJ4
if you react a secondary alkyl halide with a reagent that is both a strong base and a strong nucleophile, which reaction(s) are likely to occur? (choose all that apply)
If you react a secondary alkyl halide with a reagent that is both a strong base and a strong nucleophile, the Tertiary alcohols do not require such catalyst as they are more reactive.
What is nucleophile?
Typically, a good nucleophile is a good base. Therefore, strongly nucleophilic compounds have negatively charged O, N, and C atoms, making them strong bases. Examples include NH2, RO, OH, RLi, and RC:C:.
What is secondary alkyl halide?
A type of alkyl halide (haloalkane) in which the halogen atom (F, Cl, Br, or I) is joined to a secondary carbon. The general structure of secondary alkyl halides. X is any atom other than carbon, typically hydrogen.
Alkyl halide is prepared by the reaction of an alcohol with HCl in which -OH group is replaced with Cl.
Primary and secondary alcohols requires catalyst such as anhydrous zinc chloride.
Tertiary alcohols do not require such catalyst as they are more reactive.
Therefore, If you react a secondary alkyl halide with a reagent that is both a strong base and a strong nucleophile, the Tertiary alcohols do not require such catalyst as they are more reactive.
Learn more about nucleophile from the given link.
https://brainly.com/question/14052597
#SPJ4
using the vsepr model, the electron-domain geometry of the central atom in clo3- is . question 34 options: a) linear b) trigonal planar c) tetrahedral d) trigonal bipyramidal e) octahedral
The VSEPR theory states that the ClO3 ion's pyramidal geometry results from the presence of one lone pair and three bond pairs, which cause sp3 hybridization.
What is VSPER Theory?
From the electron pairs that surround the core atoms of the molecule, the VSEPR theory is utilised to predict the shape of the molecules. Sidgwick and Powell initially introduced the theory in 1940. The VSEPR theory is predicated on the idea that the molecule will adopt a form that minimises electronic repulsion in that atom's valence shell.
The VSEPR hypothesis, also known as the "Valence Shell Electron Pair Repulsion Theory," is based on the idea that all atoms have a repulsion between their pairs of valence electrons,
The valence shell electron pair repulsion (VSEPR) theory is a model that predicts the 3-D form of molecules based on the amount of valence shell electron bond pairs that exist between the atoms in a molecule or ion. This theory predicts that electron couples will arrange themselves to minimise the effects of their mutual repulsion. The electron pairs are, to put it another way, as far apart as they can be.
Learn more about VSPER Theory from given link
https://brainly.com/question/14225705
#SPJ4
The difference between the actual level of activity and the standard activity allowed for the actual output x the variable part of the predetermined overhead rate is the variable overhead ____________ variance.
The difference between the actual level of activity and the standard activity allowed for the actual output x the variable part of the predetermined overhead rate is the variable overhead efficiency variance.
What is standard activity?
Standard activity is defined as a quantifiable amount of a certain role or function played by a biological entity in a biophysical process, biochemical reaction, or biochemical process that is comparable to the level of activity displayed by the same biological entity in the majority of healthy people in a reference group.
Efficiency variance is defined as the discrepancy between the actual number of inputs used and the theoretical number of inputs needed to produce a unit of output. Based on models or prior experiences, the expected inputs to generate the unit of output are predicted.
Thus, the difference between the actual level of activity and the standard activity allowed for the actual output x the variable part of the predetermined overhead rate is the variable overhead efficiency variance.
To learn more about standard activity, refer to the link below:
https://brainly.com/question/14057606
#SPJ1
n the dilution of 10.0 ml of a 0.10 m solution of hcl to a volume of 20.0 ml, what remains unchanged?
The mass of the HCl present does not chnage.
What remans constant in the solution?We know that dilution has to do with the process by which we add more solvent to the solution. In many cases, the solvent that is added is water. When we want to dilute the HCl from 0.10 M, all we need to do is to add an additional 10 mL of water so that the volume becomes 20 mL.
In all these, the mass of the HCl in the solution did not change. It is only the mass of water in the system that has increased as the solution was now made to become more dilute.
Learn more about dilute solution:https://brainly.com/question/1416865
#SPJ1
europium-151 has an abundance of 48.03% and europium-153 has an abundance of 51.97%. what is the average atomic mass of europium?
The average atomic mass of Europium is 152.04u where europium 151 has abundance of 48.03% and europium 153 has abundance of 51.97% .
There are two isotopes of naturally occurring europium(Eu).These are europium 151 and europium 153.Europium 151 is more stable isitope among the isotopes. Europium-151 has an abundance of 48.03% and Europium-153 has an abundance of 51.97%.We can calculate the abundance by calculating average atomic mass using atomic mass of each isotopes and their percentage abundance dividing each percentage abundance by 100 to convert in a decimal form .then multiply the value by atomic mass of the isotopes.
Atomic Mass of Europium-151 is 151u.
The percentage abundance of Europium-151 = 48.03%
The fractional abundance of Europium-151 = 0.4803.
Mass of Europium-153 is 153 u.
The percentage abundance of Europium-153 = 51.97%
The fractional abundance of Europium-153 = 0.5197
The atomic mass of Europium= Mass of isotope . Fractional abundance of isotopes
so putting the values we get,
Average Atomic mass of europium = (151u . 0.4803) + (153u . 0.5197)
= 152.04u
To learn more about Isotopes of Europium please visit:
https://brainly.com/question/4674198
#SPJ4
Europium-151 has an abundance of 48.03% and europium-153 has an abundance of 51.97% the average atomic mass of europium is 200.
Assume which you have ten thousand atoms of Eu.Then you've got got 4803 atoms of 63151 Eu and 5197 atoms of 63153 Eu.Mass of 63151 Eu=4803×151u=725 253 uMass of 63153 Eu=5197×153u=795 141 uMass of ten thousand toms =1 520 394 u.Average mass = 100001520394u =152 u.Method 263151 Eu:48.03%×151 u=72.5353 u63153 Eu:51.97%×153 u=79.5141 uTotal="152.0394 u"=152 u.Note: In each methods, the solution for hundreds of the 2 isotopes.
Read more about atomic mass :
calculate and record the following data in the table. name propane butane methane molar volume (l/mol) average molar volume (l/mol)
Name Molar volume(L/mol) Average Molar volume(L/mol)
Propane 22.045 987.6
Butane 23.43 1303.8
Methane 22.37 359.3
How is the Molar volume calculated ?Molar volume is directly proportional to molar mass and inversely proportional to density. The formula for molar volume is expressed as:
[tex]Vm = \frac{Molar mass}{Density}[/tex]
where,
[tex]Vm[/tex] is the molar volume of the substance
For Propane : The molar mass of propane is 44.09 g/mol
The Density of propane is 2 kg/m³
Therefore,
[tex]Vm = \frac{Molar mass}{Density}[/tex]
[tex]Vm[/tex] = 44.09 / 2
Hence, Molar volume is 22.045 L/mol
For Butane :
The molar mass of butane is 58.12 g/mol
The Density of butane is 2.48 kg/m³
Therefore,
[tex]Vm = \frac{Molar mass}{Density}[/tex]
[tex]Vm[/tex] = 58.12 / 2.48
Hence, Molar volume is 23.43 L/mol
For Methane :
The molar mass of methane is 16.04 g/mol
The Density of methane is 0.717 kg/m³
Therefore,
[tex]Vm = \frac{Molar mass}{Density}[/tex]
[tex]Vm[/tex] = 16.04 / 0.717
Hence, Molar volume is 22.37 L/mol
How to calculate average molar volume ?Average molar volume is given by ,
1 mole of gas = 22.4 L volume
For propane:
average volume is 22.4 × 1 mole
average volume is = 22.4 × 44.09
Therefore , Average volume is 987.6 L/mol
For butane:
average volume is 22.4 × 1 mole
average volume is = 22.4 × 58.12
Therefore , Average volume is 1301.8 L/mol
For methane:
average volume is 22.4 × 1 mole
average volume is = 22.4 × 16.04
Therefore , Average volume is 359.3 L/mol
What is molar volume ?At standard temperature and pressure (STP), molar volume (Vm) is the volume occupied by one mole of a chemical element or compound. It can be calculated by dividing the molar mass (M) by the mass density (ρ). A molar gas volume is one mole of any gas at a given temperature and pressure has a constant volume.Can learn more about molar volume from https://brainly.com/question/28141239
#SPJ4
A chemist measures the energy change Delta H during the following 2Fe2O3(s)->4FeO(s)+O2(g). 1)this reactions is: Endothermic or exothermic.2) suppose 94.2g of Fe2O3 react. will any heat be relased or absorbed. yes absorbed. yes releases. no.3) If you said heat will be released or absorbed in the second part of the question. calculate how much heat will be absored or released. be sure your answer has correct number of significant digits.
1) This is an endothermic process
2) Heat can be absorbed, certainly.
3) Take into account the ensuing thermochemical equation.
4 FeO(s) + O2 from 2 Fe2O3(s) (g) ΔH = 560 kJ
The process is endothermic because H > 0.
We can determine the relationships shown below.
The reaction between two moles of Fe2O3 absorbs 560 kJ.
Fe2O3 has a molar mass of 160 g/mol.
Let's say that 94.2 g of Fe2O3 react. Heat that is taken in is:
94.2g.(1mol/160g). (2mol/560kJ) = 164.85kJ
What distinguishes one from the other?Exothermic refers to chemical reactions that release energy. When bonds are created in the products of exothermic processes, more energy is produced than is required to break the bonds between the reactants. Endothermic refers to chemical reactions that either use or absorb energy.
To know more about Endothermic reaction visit:-
https://brainly.com/question/28791449
#SPJ4
a 2.20 sample of the of the diprotic acid h2x reacts completely with 44.2 ml of 0.450 m naoh solution. what is the molar mass of h2x?
The molar mass of h2x is 222.22 g/mol
H2X + 2NaOH → Na2X + 2H2O
Mole NaOH = concentration × volume
= 0.450 × 44.2 × [tex]10^{-3}[/tex]
= 0.01989mol
Mole H2X = 0.01989 / 2 = 0.0099mol
H2X and NaOH has 1 : 2 molar ratio
Molar mass = mass / mole =2.20/0.0099 = 222.22 g/mol
A chemical compound's molar mass is calculated by dividing its mass by the number of moles measured in moles that make up the sample of that compound. In contrast to molecular properties, a substance's molar mass is a bulk property. The comp0und is present in many different forms, each with a different mass as a result of the isotopes. The mlar mass represents the average of these masses. The molar mass is most frequently calculated from the standard atomic weights and is a function of the relative abundance of the constituent atoms' isotopes on Earth. It is thus a terrestrial average. The conversion betwen a substance's mass and amount can be done using the molar mass.
Learn more about molar mass here:
https://brainly.com/question/12127540
#SPJ4
select all the statements that describe the reaction of water with an alkyne in the presence of an acid catalyst. multiple select question. the enol form of the product is more stable than the keto form.
Statements that describe the reaction of water with an alkyne in the presence of an acid catalyst include :
* The ketone form of the product is more stable than the enol form.
* The initial product of the reaction is an enol.
* The enol tautomerizes to form a ketone.
* HgSO4 is used as an additional catalyst in this reaction.
A catalyst is a substance that accelerates a chemical response or lowers the temperature or pressure needed to begin one, without itself being consumed in the course of the reaction.
Catalysts speed up a chemical reaction by means of reducing the amount of power you need to get one going. Catalysis is the backbone of many business tactics, which use chemical reactions to turn raw materials into beneficial products.
Catalysts may be labeled as homogeneous, heterogeneous, or enzymatic. Homogeneous catalysts exist within the identical phase because of the reactants, whereas heterogeneous catalysts exist in a specific phase than the reactants.
Learn more about Catalyst here:-https://brainly.com/question/27855528
#SPJ4
How long is the Texas TABC course?.
The seller/server programme must cover two hours time of material, according to TABC.
You may, however, work through the material at your own pace. TABC is obtained in 45 to 60 days. This time can vary depending on the type of license or permit you've applied for and the certification required by the city and county of the proposed location's local governing authorities.
Learn more about TABC here:
https://brainly.com/question/24385223
#SPJ4
What does you sound like you are somnolent mean?.
somnolence mean you're feeling sleepy or drowsy.
Informally referred to as food coma, postprandial sleep, the after-dinner dip, or the itis[1] in African-American Vernacular English, somnolence is a common state of sluggishness or lethargy after a meal. Postprandial somnolence consists of two parts: a general state of low energy associated with activation of the parasympathetic nervous system in response to mass in the gastrointestinal tract, and a specific state of sleepiness.[2] While there are many theories explaining this behavior, including decreased blood flow to the brain, neurohormonal modulation of sleep through digestive coupled signaling, or vagal stimulation, very few have been explicitly tested. Human studies have only hazily looked at postprandial sleep behavior so far, showing probable changes in EEG spectra and self-reported sleepiness[3]. The only clear animal study on postprandial sleep behavior so far is that of the rat.
Learn more about somnolence here:
https://brainly.com/question/9140959
#SPJ4
2 c2h2(g) 5 o2(g) -----> 4 co2(g) 2 h2o(g) if you have 3.40 moles of acetylene (c2h2) for a complete reaction, how many moles of o2 are needed:
The 0.16 moles of o2 are needed for to complete this reaction.
What is mole?
The term "mole" refers to the volume of a system that includes as many elementary particles as there are atoms in 0.012 kilograms of carbon 12.
What is acetylene?
The simplest alkyne chemical, often known as acetylene. Ethyne, narceine, and vinylene are other names for acetylene. It is widely utilised as a fuel and a component of chemical compounds. It is treated as a solution even though it is unstable in its pure state.
2C2H2(g)+5O2(g)→4CO2(g)+2H2O(g)
A) 2 moles C2H2 require 5 moles O2
3.0 moles C2H2 require 3.0 x 5 / 2 = 7.5 moles O2
moles of O2 required = 7.5
B) 2 moles C2H2 produce 4 moles CO2
3.2 moles CH2 produce 3.2 x 4 / 2 = 6.4
moles of CO2 produced = 6.4
C) 2 moles H2O require 2 moles C2H2
0.58 moles H2O require 0.58 x 2 / 2 = 0.58 moles C2H2
moles C2H2 require = 0.58
D) 5 moles O2 produce 4 moles CO2
0.20 moles O2 produce 0.20 x 4 / 5 = 0.16
moles CO2 produced = 0.16
Therefore, 0.16 moles of o2 are needed for to complete this reaction.
Learn more about moles from the given link.
https://brainly.com/question/1427235
#SPJ4
Is an electronegativity difference of 0. 4 polar or nonpolar?.
A bond is considered nonpolar if the electronegativity difference is less than about 0.4.
A bond is considered polar if the electronegativity difference of the atoms in the bond is greater than 0.4. If the electronegativity difference is less than 0.4, the bond is essentially nonpolar. If there are no polar bonds, the molecule is non-polar. To determine whether a molecule is polar or nonpolar, it is often useful to look at the Lewis structure.
Nonpolar compounds are symmetrical. That is all sides around the central atom are identical. That is, they have no unshared pair of electrons and are bonded to the same element. Bonds with an electronegativity difference between atoms of 0.5 to 2.1 are called polar covalent bonds. A polar covalent bond is a covalent bond whose shares are unequal because atoms have unequal attractive forces on electrons.
Learn more about Electronegativity here:-https://brainly.com/question/24977425
#SPJ4
Given a reaction between an organic molecule, denoted as a, and nash, we observe the following observations. Using the observations, write a rate law for the reaction.
When [A] concentration is lowered in half and [NaSH] concentration is quadrupled, the rate doubles.
What is molecule and example?The simplest unit of any substance consisting of one or more components that may exist on its own while having each of the material's physical and chemical characteristics is called a molecule. In molecules, more atom division takes place. For instance, the atom and molecule of oxygen are represented by the letters O & O2, respectively.
What is a molecule or atom?Particles are referred to as the "basic building units of matter." The smallest building blocks of a substance are the qualities of the chemical element. Covalent (chemical) bonds hold one or more atoms together to form molecules.
To know more about molecule visit:
brainly.com/question/28843074
#SPJ4
which of the following statements correctly describe resonance structures? select all that apply.
Molecules that require more than one inwis structure to accurately describe them.
The actual molecule is an average of the Lewis structure.
Moleculos that change back and forth between several different forms Molecules that spin so that double bends paint in ditferent dircctions
Molecules that react with other molecuies and form a hybrid
The statements correctly describe resonance structures is The actual molecule is an average of the Lewis structure. Therefore, option B is correct.
What is Lewis structure ?The representations known as Lewis structures, often referred to as Lewis dot formulas, Lewis dot structures, electron dot structures, or Lewis electron dot structures, depict the interactions between the atoms in a molecule as well as any lone pairs of electrons that may be present.
The electronic bonding of a single polyatomic species, including fractional bonds and fractional charges, is described by resonance structures, which are a collection of two or more Lewis structures.
In comparison to separate resonance structures, the resonance hybrid is more stable. The movement of a charge between two or more atoms is frequently represented by resonance structures. These atoms have a more evenly distributed charge, which makes it more stable.
Thus, option B is correct.
To learn more about lewis structure, follow the link;
https://brainly.com/question/4144781
#SPJ1
What are some examples of chemical exposure?.
Water exposure can happen when someone drinks polluted subsoil and surface water, or ingests it unintentionally while swimming or taking a shower.
How long do contaminants stay within the body?After exposure, some substances quickly leave the body. Others might persist for a long period in fats, blood, or bones. For instance, if a person has been exposed to arsenic just once, it typically only persists inside the body for 3 days. Other substances, like the insecticide DDT, can linger inside the body for up to 50 years.
What causes exposure to chemicals?Exposed: A chemical can only harm your health if it comes into touch with or enters your body. Exposure routes: A chemical can be exposed through eating, inhalation, or direct contact.
To know more about chemical exposure visit:
https://brainly.com/question/13959998
#SPJ4
how many alkene products, including e,z isomers, might be obtained by dehydration of 3-methyl-3-hexanol with aqueous sulfuric acid?
Five alkene products, By dehydrating 3-methyl-3-hexanol, five alkene compounds are attainable.
What are alkenes' products?Alkenes can interact with various chemical kinds in addition reactions.
For instance:
hydrogen + propane = propane.For instance, butene + water yields butanol.An alkene may receive the addition of chlorine, bromine, or iodine. Usually, these responses are unplanned. ...Dichloroethane is created by adding chlorine to ethane.Iodine with ethene produce diiodoethane.Alkenes are a group of unsaturated hydrocarbons (i.e., molecules with solely carbon and hydrogen) that include at least one double bond from carbon to carbon. Olefins is a different name for alkenes. Due to the double bond, alkenes are more reactive than alkanes.
To learn more about Alkenes refer to:
https://brainly.com/question/13910028
#SPJ4
Each of the following sets of quantum numbers is supposed to specify an orbital. Choose the one set of quantum numbers that does not contain an error. Select one: a. n = 3,1 = 2, ml = +3 b. n = 4, 1 = 0, ml = -1 c. n = 3, 1 = 1, ml = -2 d. n = 4,1 = 4, ml = 0 e. n = 5,1 = 3, ml = -3
The quantum numbers does not contain an error is n = 5, l = 3, ml =-3 .
What is meant by quantum numbers ?Quantum numbers in quantum physics and chemistry explain the values of conserved quantities in a quantum system's dynamics. Quantum numbers are quantities that may be precisely known together with the energy of the system and their corresponding eigenspaces. They correspond to the eigenvalues of operators that transact with the Hamiltonian. A base state of a quantum system is fully described by the specification of all of its quantum numbers, which may theoretically be measured collectively.The quantization of several interesting observable quantities is a crucial component of quantum physics. This specifically results in quantum numbers, though they may occasionally approach infinity, that take values in discrete sets of integers or half-integers.Learn more about quantum numbers refer to :
https://brainly.com/question/2292596
#SPJ4
What is Marxism theory?.
Marxism is just a social, political, & economic ideology that emphasizes the conflict between capitalists and also the working class. It was developed by Karl Marx.
What is a political party, exactly?A broad coalition that arranges candidates to run in elections in a certain nation. It is typical for party members to share similar political viewpoints, and parties may support particular ideologies or policy objectives.
What does it mean to have a political issue?The course manual for Global Politics defines a political issue as "any question that deals with just how power is allocated and how much it operates inside social organization, as well as how individuals think about and engage in their communities and the larger globe on matters that influence their lives."
To know more about political visit:
https://brainly.com/question/12401053
#SPJ4
Why is there no liquid metallic hydrogen zone in the interiors of uranus or neptune?.
Two answers. Pressure and they're not big enough.
Now, you see, in order for hydrogen to be metallic, the interiors of Uranus and Neptune would have to have more pressure.
Pressure can be defined as the exertion of force upon a surface by an object, fluid, etc., in contact with it.
The three states of matter on Earth are solid, liquid, and gas. An element's shape is determined by its temperature and pressure. On Earth, hydrogen is generally a gas, but it may be intentionally cooled and compressed to change its state into a liquid or a solid. Hydrogen is still a non-metal even in these states; since its atoms strongly cling on to their electrons, it has poor electrical and thermal conductivity. Contrarily, metals have good electrical and thermal conductivity due to the arrangement of their atoms, which forms a lattice that makes it simple for the outermost electrons of one atom to go to another.
Jupiter and Saturn are the two gas giants in our solar system. Based on their densities, both planets have a considerable amount of hydrogen in them. However, the hydrogen in these giants is heated and compressed to such high temperatures and pressures that it assumes a number of peculiar phases, including liquid metallic hydrogen. Hydrogen, as I previously stated, is a non-metal. However, in Jupiter and Saturn, the extreme temperatures and pressures cause hydrogen atoms to lose their electrons, resulting in a stew of free-floating hydrogen nuclei (protons) and electrons. The ability of the electrons to travel freely between the nuclei due to their unbound state is a characteristic of metals. This is metallic hydrogen, which has a metallic-like behavior. Metallic hydrogen is conductive and is thought to play a significant role in the dynamo that drives the magnetic fields of Jupiter and Saturn. (However, the dynamo on Earth is propelled by liquid iron, a real metal.)
The ice giants of our solar system, Uranus and Neptune, are too dense for hydrogen to make up a significant portion of their composition. In addition, because of how similar their masses are, planetary scientists presume that the innards of these two planets are comparable and that hydrogen makes up just around 15% of their masses. Although hydrogen is thought to form a liquid molecular shell deeper into Uranus and Neptune and is present in their atmospheres, it never experiences the pressures and temperatures necessary to transform into metallic hydrogen.
Thanks.
The four naturally occurring isotopes of sulfur are sulfur-32 sulfur-33 and sulfur-34.
Fourth naturally occurring isotope of sulfur is sulfur-36. The average atomic mass of Sulfur is 32.066 amu.
Natural abundance of isotopes of sulfur is:
sulfur-32 is 95.0%
sulfur-33 is 0.76%,
sulfur-34 is 3.22%
sulfur-36 is 0.89%
The average atomic mass of an element is defined as the total of atomic mass of an isotope multiplied by its natural abundance. Atomic mass of sulfur can be found as
Average Atomic Mass = (Atomic mass of S-32 * Abundance of S-32) + (Atomic mass of S-33 * Abundance of S-33) + (Atomic mass of S-34 * Abundance of S-34) + (Atomic mass of S-36 * Abundance of S-36)
Average Atomic Mass = (32amu × 0.95) +(33amu × 0.0076) + (34amu × 0.0322) +(36amu × 0.0089)
Average Atomic Mass = (30.4amu) + (0.2508amu) + (1.0948amu) + (0.3204amu)
Average Atomic Mass = 32.066 amu
Your question is incomplete but most probably your full question was;
Sulfur has 4 isotopes: sulfur-32 is 95.0%, sulfur-33 is 0.76%, sulfur-34 is 3.22%, and sulfur-36 is 0.89% abundant. calculate its average atomic mass. express your answer with five sig figs.
To look more about sulfur click here
brainly.com/question/1478186
#SPJ4
