The picture depicts an organic complex made up of a molecule of glycerol and serves as an illustration of a saturated fat.
Explain what a molecule is?A molecule is the simplest unit of a material that keeps its content and properties. It is made up of two or maybe more atoms that are joined together by chemical bonds. Chemistry is built on molecules. The component symbol and a prefix indicating the amount of atoms are used to identify molecules.
Is oxygen an atom or a molecule?In nature, oxygen exists as a molecule. To create dioxygen, or O2, two oxygen atoms must make a solid double bond with one another. Typically, oxygen exists as a molecule. It has the name dioxygen.
To know more about molecule visit:
https://brainly.com/question/19556990
#SPJ1
give one ir absorption frequency or range you could use to distinguish between the following two isomers, and designate which isomer will exhibit this absorption by a preceding letter, e.g. a1700 or b1640-1680.
1) analyze their absorption frequencies and identify respective functional groups 2)Because every chemical has a fingerprint part, measurements of 1500 cm and under are irrelevant in this case.
What is an example of frequency?The quantity of wave that pass a set location in a predetermined period of time is known as frequency.Therefore, if a wave passes through in half a second, the frequency becomes 2 per second.The frequency being 100 times per hour if it take 1/100 of an hour.
What is the purpose of frequency?radio signals, & light, is a critical factor in science and technology.
To know more about frequencies visit:
https://brainly.com/question/5102661
#SPJ4
Draw the major product of the following reaction: Br OMe
The end result of a chemical process that is produced in the highest quantity.
What exactly are a major and minor product?
Large and Small Products
The product that was created using Markovnikov's rule is considered to be the major product out of the two conceivable products. Most of the time, this substance will form (70%–95%). The minor product is the name for the substitute.
How is a major product created?
The Markovnikov Rule in use
As a result, the Markovnikov Rule states that when more hydrogen is added to carbon, the main product will result. This suggests that the main result will be 2-bromopropane when hydrogen is added to carbon-1, which has a higher concentration of hydrogen, and bromine is added to carbon-2.
To know more about major product visit;
https://brainly.com/question/12287359
#SPJ4
in water, a substance that partially ionizes in solution is called a group of answer choices nonelectrolyte. nonconductor. weak electrolyte. strong electrolyte. semiconductor.
In water, a substance that partially ionizes in solution is called
nonelectrolyte.nonconductor weak electrolytestrong electrolytesemiconductorHence, the Correct Option is 3) i.e., Weak electrolyte
Weak electrolytes are those electrolytes that do not dissociate or ionized completely in their aqueous solution. These electrolytes have low electrical conductivity with a lesser extension of ionization. For example, CH3COOH, NH4OH, etc
In water substance that is partially ionized in solution is known as weak electrolyte. Since strong electrolyte completely ionized while weak electrolyte partially ionized.
Weak electrolyte examples: Acetic acid (CH3COOH): Acetic acid is the acid that is found in vinegar. It is an electrolyte that is extremely soluble in the water. But when it is dissolved in the water, most of its original molecule remains as it is, instead of being in the ion form. This original form is known as ethanoate. The acetic acid is dissolved in the water and ionises as ethanoate and the hydronium ion. Thus, this makes acetic acid a weak electrolyte.
CH3COOH + H2O ⇔ CH3COO -+ H3O +
Carbonic acid (CH2O3), Ammonia (NH3), and Phosphoric acid (H3PO4) act as weak electrolytes.
To learn more about Weak electrolyte visit:
https://brainly.com/question/3410548
#SPJ4
Which of the following is an example of intermolecular forces?
O hydrogen bonding
O covalent bonding
O fonic bonding
O metallic bonding
D Question 2 The strongest intermolecular forces present in a sample of HOF are
O hydrogen bonds
O covalent bonds
O dipole-dipole forces
O London dispersion forces
1.)Hydrogen bonding is a example of intermolecular force where H interract with more electronegative element like O, N , F . 2.) Hydrogen bonding is present in HOF which is more stronger then london dispersion force.
Intermolecular force are those that bind molecules together. Figure illustrating the intramolecular attraction within an H-Cl molecule and the intermolecular attraction between two H-Cl molecules. Forces between molecules are known as intermolecular forces. Three physical states—solid, liquid, and gas—are formed depending on the strength of intermolecular forces. The attraction between molecules is known as intermolecular force. These forces are crucial because they aid chemists in determining a substance's physical characteristics, such as its state, melting point, boiling point, etc. The melting and boiling points rise in proportion to the strength of the intermolecular forces.
Learn more about Intermolecular force here:
https://brainly.com/question/9007693
#SPJ4
in this experiment, two equivalents of benzaldehyde were used, and the desired product was dibenzylideneacetone. how can you use the attached proton nmr of the product to show that you did not isolate the product of a single aldol condensation (that is, benzylideneacetone).
Aldol condensation results from the reaction of two moles of benzaldehyde with one mole of acetone.
The preparation of benzylideneacetone from benzaldehyde and acetone proceeds by the procedure of Claisen-Schmidt reaction which is a condensation reaction between aromatic aldehydes or aldehyde with ketone in the presence of an alkali.
Aromatic aldehyde, in the presence of an alkali, undergoes a condensation reaction with an aldehyde or ketone containing alpha hydrogen atoms. This reaction is named as Claisen-Schmidt reaction. In the presence of sodium hydroxide, aldehydes can condense with another aldehyde or ketone by eliminating a water molecule. Thus, with one mole of acetone, moles of benzaldehyde condense to give Dibenzal acetone.
Hence, benzaldehyde with acetone with ketone forms aldol product.
To know more about Gram equivalent.
https://brainly.com/question/23942196
#SPJ4
you baked two cakes: one in a light aluminum pan and one in a heavy pyrex pan.
1) The pan that just give up the most heat to cool is the pyrex pan
2) The pan that gives up heat easily is the aluminum pan
3) The pan that would burn your fingers quickly is the aluminum pan.
4) The pan in which the bottom of the cake is more likely to brown is the aluminum pan
What is the nature of the pans?In trying to discuss the question that is before us here the idea of the specific heat capacity of a substance must come to mind. We know that the specific heat capacity has to do with the amount of heat that must be supplied to an object in order to raise the temperature of 1 kilogram of the object by 1 degree Celsius.
We know that the specific heat capacity of the Pyrex glass is much higher than that of the aluminum. The implication of this is that if we supply the same temperature to the aluminum as we have supplied to the pyrex, the temperature of the Pyrex would tend to rise slower than that of the aluminium.
Learn more about specific heat capacity:https://brainly.com/question/28302909
#SPJ1
Missing parts;
You baked two cakes: one in a light aluminum pan and one in a heavy pyrex pan. The pan that needs to give up the most heat energy to cool down to room temperature? The pan that gives up the heat energy the fastest aluminum? The pan most likely to burn your fingers if you try to move it too soon? The pan in which the bottom of the cake is most likely to brown (same temperature oven, same time in oven?)
draw the electron configuration for a neutral atom of cobalt
The electron configuration for a neutral atom of cobalt is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁷.
Cobalt [tex]Co \limits^{58.93}_{27}[/tex] have
Mass number = 58.93Atomic number = 27 Proton = electron = 27The electron configuration is the distribution of electrons from the lowest energy level according to the Aufbau principle. From the lowest energy level 1s², 2s², 2p⁶, 3s², 3p⁶, 4s², 3d¹⁰, 4p⁶, 5s², 4d¹⁰, ...
The numbers in the exponents indicate the maximum number of electrons that can holds.
₂₇ Co : 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁷
Before 3d, there were already 20 electrons, so in 3d there are only 7 left. 5 atoms are shown with up arrows and 2 down arrows because we must fill, up arrows first.
Learn more about electron configuration here: https://brainly.com/question/26084288
#SPJ4
What should be the major product if 2-methylbuta-1,3-diene is treated with HBr ?
If you take note that when conjugation DOES NOT occur, you get a more stable carbocation, protonating carbon-1 produces the main result.
Since only a 1,2-hydride shift is needed to reach the main product, protonating carbon-1 would have been preferable to protonating carbon-2 (molecules tend to be lazy and do the least work possible).
A primary carbocation or a secondary carbocation upon a 1,2-hydride shift would result from protonating carbon-3. The tertiary carbocation produced by protonating carbon-1 is more stable than both of them combined.
Even though there is a chance of conjugation, protonating carbon-4 is still not a good idea because it results in either primary or secondary carbocations, neither of which are excellent choices.
Learn more about carbocation here;
https://brainly.com/question/13998560
#SPJ4
a constant current is passed through an electrolytic cell containing molten mgcl2 for 12.8 h. if 3.64 g of mg(s) is produced, what was magnitude of the current that was passed through the cell? the molar mass of mg is 24.305 g/mol.
A constant current is passed through an electrolytic cell containing molten MgCl₂ for 12.8 h. if 3.64 g of mg(s) is produced .The magnitude of the current that was passed through the cell is
given that :
T = 12.8 hr = 46080 sec
Mass = 3.64 g
molar mass = 24.305 g /mol
the moles = mass / molar mass
= 3.64 / 24.305
= 0.149 mol
moles = Q / ZF
where,
Q = charge
Z = no. of electrons
F = faraday constant = 96485 C
moles = Q / ZF
Q = 0.149 × 2 × 96485
Q = 28752.53 C
the current is given as :
Q = I T
I = Q / T
I = 28752.53 / 46080
I = 0.62 A
Thus, the current is 0.62 A.
To learn more about current here
https://brainly.com/question/28330540
#SPJ4
Draw the Lewis Structure for TeO3 and determine the electron domain geometry. Draw the Lewis Structure for TeO3 and determine the number of lone pair(s) on the central atom. Draw the Lewis Structure for TeO3 and determine the name of the molecular geometry. Draw the Lewis Structure for TeO3 and predict the polarity. Draw the Lewis Structure for TeO3 and predict the predominant intermolecular force. Draw the Lewis Structure for TeO3 and determine the hybridization on Te.
The Lewis Structure for TeO3 and determine the electron domain geometry
TeO3 - Tellurium oxide
Te:
Atomic number: 52
Electron configuration: [Kr] 4d105s25p4
learn more about Tellurium oxide here:
https://brainly.com/question/28514130
#SPJ4
If you had not heated the sample long enough to remove all the water of hydration, how would your subsequent calculations have been affected?
If the sample is not heated long enough water of hydration remain in the sample which adds on to the molar mass of the sample thereby introducing errors in calculations.
What is molar mass?Molar mass of a compound or a molecule is defined as the mass of the elements which are present in it.The molar mass is considered to be a bulk quantity not a molecular quantity. It is often an average of the of the masses at many instances.
The molecular mass and formula mass are used as synonym for the molar mass.It does not depend on the amount of substance which is present in the sample.It has units of gram/mole.
Molar masses of an element are given as relative atomic masses while that of compounds is the sum of relative atomic masses which are present in the compound.
Learn more about molar mass,here:
https://brainly.com/question/22997914
#SPJ1
In an endothermic reaction, energy is
Answer:
Endothermic reactions absorb energy
Explanation:
Answer:
Energy (Heat energy) is absorbed from the surroundings
Explanation:
When the total heat content of the products is more than the reactants, heat energy must be absorbed from the surroundings for the reaction to proceed . such reaction is said to be endothermic
The quantum number defines the shape of an orbital. spin magnetic principal angular momentum psi The subshell contains only one orbital. 5d 6f 4s 3d 1p The angular momentum quantum number is 3 in orbitals. s p d f a The principal quantum number of the first d subshell is 1 2 3 4 0 [Ar]4s^23d^104p^3 is the electron configuration of a(n) atom. As V P Sb Sn
The primary quantum number (n), the orbital angular momentum quantum number (l), the magnetic quantum number (ml), and the electron spin quantum number are the four quantum numbers that make up an atom (ms).
There can be no zero for the main quantum number (n). Therefore, the permitted values for n are 1, 2, 3, 4, and so forth. Any integer between 0 and n – 1 can serve as the angular quantum number (l). For instance, if n = 3, l can be one of 0, 1, or 2. Any integer between -l and +l can be used as the magnetic quantum number (m). The principal quantum number is the first quantum number (n). The energy of an electron is substantially determined by the fundamental quantum number.
To know more about the quantum number,
https://brainly.com/question/2292596
#SPJ4
Which of the following relationships correctly express the Clausius-Clapeyron equation, which relates vapor pressure to temperature? Select all that apply.
Ln P=-delta Hvap/R(1/T)+C
LnP/P2=deltaHvap/R(/T2-/T1)
LnP2/p1=deltaHvap/R(/T2-/T1)
Ln P=-delta Hvap/R(1/T)+C and LnP2/p1=deltaHvap/R(/T2-/T1). A Clausius-Clapeyron equation, which connects vapor pressure to temperature, is accurately expressed by relationships.
The Clausius-Clapeyron equation is just what.additionally known as the Clapeyron solution or Clapeyron-Clausius equations. the differential equation linking a substance's temperature and pressure in a system where the substance is in equilibrium between two phases. where T is the temperatures in °C and K is the vapor pressure.
What does Clausius Clapeyron's Unit mean?The left (LHS) natural log term has no units. The only criterion is that P1 and P2 must be expressed in same pressure unit, regardless of the pressure units you employ. The unit for the temperatures term will be K1. The R is measured in J mol K1, where K1 is the temperature.
To know more about Clausius-Clapeyron equation visit:
https://brainly.com/question/13162576
#SPJ4
Problem 6.30 b Draw the mechanism for the following reaction. OH H,O HzN Get help answering Molecular Drawing questions: Your answer is incorrect Try again. Part A: Draw part 1 of the mechanism. Include charges and lone pairs on your mechanism. 5 Edit Get help answering Molecular Drawing questions_ Your answer is incorrect Try again. Part B: Draw part 2 of the mechanism: Include charges and lone pairs on your mechanism:
Ring expansion is the first reaction's mechanism. A primary oxonium ion is created when the hydroxyl group is protonated by sulfuric acid. the main ion of oxonium.
How are lone pairs identified?By deducting the number of valence electrons on bound atoms (Step 2) from the total number of valence electrons, one can determine the number of lone pairs on the central atom (Step 1). To determine the number of LPs, divide the number of VEs not in bonds (from Step 3) by two.
What do bond pairs and lone pairs refer to?Bond pairs are the shared pairs of electrons that exist between the bonded atoms. Not all valence electrons will necessarily participate in a bond. Lone pairs of electrons are the electron pairs that do not engage in bonding.
To know more about mechanism visit:-
https://brainly.com/question/20885658
#SPJ
in double replacement reactions, why will two metals not combine with each other when products are formed?
In double replacement reactions, the two metals will not combine with each other when products are formed because the atoms of metals contain less than half the full complement of electrons in their outermost shell.
What is Double replacement reaction?This is referred to as a type of reaction in which the positive and negative ions of two compounds exchange places to form two new products or substances.
The two metals will not combine with each other when products are formed because of their atoms having less than the required electrons which is needed to complement those in the outermost shell.
Read more about Metals here https://brainly.com/question/4701542
#SPJ1
in the movie star wars episode v: the empire strikes back, the character han solo is frozen in the fictional material, carbonite. if carbonite existed, what would be its likely chemical formula?
If carbonite existed, its likely chemical formula will be CO₂²⁻.
The carbonite is liquid substance that is made from the carbon and the oxygen. the carbonite could change in the solid form through rapid freezing. carbonite is used to freeze the good for preservation is called as the carbon freezing. the carbonite is the blasting explosive. so, the carbon freezing is the process in which the liquid carbonite is frozen into the solid state.
Thus, in the movie star wars episode v: the empire strikes back, the character han solo is frozen in the fictional material, carbonite. if carbonite existed, its likely chemical formula will be CO₂²⁻.
To learn more about carbonite here
https://brainly.com/question/29596527
#SPJ4
a 9.394mg sample of compound yielded 31.154 mg of carbon dioxide and 7.977 mg of water in combustion. calculate percent compositiobn of compound
%C = 90.5% and%H = 9.5%, You can determine by mass the amount of every element is contained in a compound using its percent composition.
Which is larger, mass or moles?Masses percent composition too is referred to as mass percent. The symbol for it is w/w%. A solution's mass percent is calculated by dividing the mass of each element present in one moles of the compound by the compound's molar mass and multiplying the result by 100%.
What do mass percent and composition percent mean?Despite their interchangeability, the phrases mass percent or percent composition are distinct. While the average concentration refers to a percentage of a certain chemical element inside a mixture, it weight percentage refers to the proportion of the a component in a combination.
Briefing:Mass of compound = 9.394 mg
Mass of CO2 yielded = 31.154 mg
Mass of H2O yielded = 7.977 mg
Molar mass of CO2 = 44.01 g/mol
Molar mass of H2O = 18.02 g/mol
mass of C = 7.08 × 10^-4 mol × 12.01 g/mol
mass of C = 0.0085 grams
mass of H = 8.86 × 10^-4 mol × 1.01 g/mol
mass of H = 0.000894 grams
Total mass of the compound = 0.0085 grams + 0.000894 grams = 0.009394 grams 9.394 mg
%C = (8.50 mg / 9.394 mg) x 100 = 90.5%
%H = (0.894 mg / 9.394 mg) x 100 = 9.5%
To know more about Percentage composition visit:
https://brainly.com/question/492953
#SPJ4
what volume of bromine trifluoride is required to produce 106 liters of fluorine gas according to the following reaction? (all gases are at the same temperature and pressure.)
70.6 litres of bromine trifluoride is required to produce 106 liters of fluorine gas according to the following reaction provided that all gases are at the same temperature and pressure.
Since, 2BrF3 (g) gives Br2 (g) + 3 F2 (g)
Here 2 mole BrF3 produces 3 mole F2
If volume produced of F2 is 106 litres
Therefore, volume of BrF3 =?
Since, v1 is directly proportional to n1
Therefore, v1/n1 = v2/n2
v1/2moles = 106 litres/3 moles
v1= 212/3 = 70.6 litres
To learn more about bromine trifluoride visit:
https://brainly.com/question/29037418
#SPJ4
Draw lewis structure for C5H12
The Lewis structure for C5H12 looks like this:
H - C - H
| | |
H - C - H
| | |
H - C - H
A Lewis structure is a way of representing the covalent bonds in a molecule. To draw the Lewis structure for C5H12, we first need to determine the number of valence electrons in the molecule. The valence electrons are the electrons in the outermost energy level of an atom, and they are the ones involved in chemical bonds.
In the case of C5H12, carbon has four valence electrons and hydrogen has one. This means that the molecule has a total of 5 x 4 + 12 = 32 valence electrons.
To draw the Lewis structure, we start by placing the five carbon atoms in the center of the structure, forming a pentagon. We then connect each carbon atom to the other four using single bonds, which represent two electrons each. This accounts for 20 of the 32 valence electrons.
Next, we add the remaining 12 valence electrons by placing hydrogen atoms on the outside of the pentagon, one on each side. Each hydrogen atom forms a single bond with a carbon atom, accounting for the remaining 12 valence electrons.
Learn more about Lewis structure, here https://brainly.com/question/4144781
#SPJ4
what mass (in grams) of mg(no3)2 is present in 107.7 ml of a 0.156 m solution of mg(no3)2 ?
According to the supplied information, 2.49 g of Mg(NO3)2 weighs in at 107.7 ml in a 0.156 m liquid of Mg(NO3). ₂
What are mass and the mass formula?The amount of atoms that make up every item or body is the greatest way to understand mass. Everything that we can see has mass. Examples of objects with mass include a chair, a sofa, your bed, a soccer, a tumbler, and even air. The mass of a thing determines whether it is light or heavy.
The mass of an item may be calculated by multiplying its density by its volume since densities is a metric of mass per volume.
Briefing:Molarity of Mg(NO₃)₂ = 0.156 M
volume = 107.7 mL = 0.1077 L
Molarity = moles / volume
0.156 = moles / 0.1077
moles = 0.0168
molar mass of Mg(NO₃)₂ = 148.3 g/mol
moles = mass / molar mass
0.0168 = mass / 148.3
mass of Mg(NO₃)₂ = 2.49 g
To know more about Mass visit:
https://brainly.com/question/24727597
#SPJ4
determine the ph change when 0.085 mol hi is added to 1.00 l of a buffer solution that is 0.392 m in hclo and 0.356 m in clo-.
The pH change for the given acidic buffer solution is 0.22.
HClO and ClO- is an acidic buffer, and with addition of HI, the concentration of acid increases while the concentration of salt decreases.
pH=pKa +log (salt/acid)
=7.54+log (0.326/0.369)
=7.54-0.05
=7.49
On adding Hydrogen iodide,
pH=pKa+ log((0.326-0.085)/(0.369+0.085))
=7.54+log (0.241/0.454)
=7.54-0.27
=7.27
Thus, the value of pH change cab be calculated as follows:
=7.27-7.49
=0.22
To learn more about pH check the link below:
https://brainly.com/question/172153
#SPJ4
3. spontaneous reactions: once you give them a little they will on their own. they tend to energy and give it their surroundings. a. total energy ( ), which is enthalpy. in biology our energy is in b . in a spontaneous reaction it gets smaller or b. entropy ( ) is a measure of the d /randomness of a system. in spontaneous reaction, entropy . c. temperature (t), if we i the temperature the spontaneous reaction is more likely to happen.
A spontaneous reaction is a reaction which occurs on its own, without providing any external energy. Spontaneous reactions are irreversible in nature.
A spontaneous reaction has an increase in entropy, ΔS(degree of randomness) and a decrease in enthalpy,ΔH in it.
An exothermic reaction, where there is decrease in enthalpy i.e ΔH is negative and an increase in entropy i.e ΔS is positive will always be spontaneous in nature.
The combination of enthalpy change and entropy change gives the free energy of a reaction , which is known as Gibb's free energy( ΔG°)
ΔG° = ΔH - TΔS
Here, temperature is a deciding factor when both ΔH and ΔS have opposite signs. With increase in temperature, the spontaneity of a reaction increases.
To know more about spontaneous reactions here
https://brainly.com/question/13976282
#SPJ4
would you expect frenkel defects for anions to exist in ionic ceramics in relatively large concentrations? why or why not?
No because anions are very large and will most likely not exist as an interstitial impurity.
What is interstitial impurity?
A point defect that develops when an impurity atom takes up residence in an octahedral or tetrahedral hole in the lattice of adjacent atoms.
Give an example of an interstitial impurity flaw?
It is a specific kind of point flaw. It can be fixed into a lattice's tetrahedral or octahedral hole and is quite tiny. For instance: Interstitial impurities are bound to carbon atoms with steel that contains iron.
What does the chemical term "interstitial" mean?
All atoms that are interstitials are positioned between other atoms rather than where they normally would be. A self interstitial atom in an elemental fcc crystal is depicted in the picture as a straightforward example.
Interstitials are found in the spaces between the spheres of the crystal, which can be thought of as a periodic arrangement of hard spheres.
Learn more about interstitial impurity
brainly.com/question/29412400
#SPJ4
Label the stretches in the IR spectrum shown that confirm the presence of benzil in the sample. Then, identify -stretch that would indicate the presence of starting material (benzoin) Infrared Spectrum of Benzilic Acid, KBr 25 sp2 ; C=0 Answer Bank 20 1 sp, C=0 sp? C-H Sp" 0-H (ROH) 8p"_ 0-H(COOH) 2950 cm " sp? , C_H 34400 cm ! 1640 cm " 4000 3500 3000 2500 2000 1500 Wavenumbers (cm ') 1000
Order for IR Spectrum is as follows:
Peak at 1640cm- = sp2,C=O, at 2950cm- = sp3,C-H, at 3400cm- = sp3,O-H
Carbonyl frequency general occur between 1630cm- to 1850cm- and sp3 C-H stretch always occur at less then 3000cm-.
What is IR spectrum?The study of the interaction of infrared radiation with materials by absorption, emission, or reflection is known as infrared spectroscopy (also known as IR spectroscopy or vibrational spectroscopy). Chemical compounds or functional groups in solid, liquid, or gaseous forms are studied and identified using this technique. It can be applied to classify novel materials or locate and authenticate known and unidentified samples. An equipment known as an infrared spectrometer (or spectrophotometer), which generates an infrared spectrum, is used to perform the infrared spectroscopy method or procedure. An IR spectrum can be shown as a graph with the absorbance (or transmittance) of infrared light on the vertical axis and the wavelength, frequency, or wavenumber on the horizontal axis. Reciprocal centimeters, denoted by the sign cm1, are the most common wavenumber units used in IR spectra.
Order for IR Spectrum is as follows:
Peak at 1640cm- = sp2,C=O, at 2950cm- = sp3,C-H, at 3400cm- = sp3,O-H
Carbonyl frequency general occur between 1630cm- to 1850cm- and sp3 C-H stretch always occur at less then 3000cm-.
To refer more about IR spectrum visit:
https://brainly.com/question/29662371
#SPJ4
Which of the following is insoluble? (1) calcium chloride, (2) ammonium phosphate, (3) barium sulfate, (4) potassium chromate
The insoluble substance is barium sulfate. The answer (3).
Solubility rules for chlorides (Cl⁻) are all chlorides are soluble, except for ions Ag⁺, Pb²⁺, and (Hg₂)²⁺. So insoluble chlorides are
AgClPbCl₂Hg₂Cl₂Calcium chloride (CaCl₂) is soluble.
Solubility rules for phosphate (PO₄³⁻) are all phosphate is insoluble, except for ions Na⁺, K⁺, and NH₄⁺. So soluble phosphate is
Na₃PO₄K₃PO₄(NH₄)₃PO₄Ammonium phosphate (NH₄)₃PO₄ is soluble.
Solubility rules for sulfate (SO₄²⁻) are all sulfate is soluble, except for ions Ba²⁺, Pb²⁺, Ca²⁺, and Sr²⁺. So insoluble sulfate is
BaSO₄PbSO₄CaSO₄SrSO₄Barium sulfate BaSO₄ insoluble.
Solubility rules for chromate (CrO₄²⁻) are all chromate are insoluble, except for ions group 1 (Li⁺, Na⁺, K⁺). So soluble chromate are
Li₂CrO₄Na₂CrO₄K₂CrO₄Potassium chromate K₂CrO₄ is soluble.
Learn more about solubility rules here: https://brainly.com/question/14753184
#SPJ4
How effective is the introduction [paragraphs 1- 4] at introducing the phases of matter?
Three major points, in that sequence, should be included in the start of your essay: An attention-grabbing first sentence. Background knowledge that is pertinent and is required for the reader. A thesis statement that summarizes your key argument or point.
What is meant by phases?Phases are divisions of a system that are physically separate and mechanically separable from other divisions of the system. material states. Phases can be solid, liquid, or gaseous within a system. Strong atomic bonds and high viscosity, which produce a hard form in solids, are their defining properties. Whether one or more phases of matter are present or absent in a solution is referred to as its phase. We can divide the solutions in this situation into two categories: homogeneous solutions and heterogeneous solutions. A section of material that is chemically homogenous, physically distinct, and (often) mechanically separable is known as a phase, according to a straightforward definition.To learn more about phases, refer to:
https://brainly.com/question/25664350
#SPJ1
a. What is the electron-domain (charge-cloud) geometry of BrF5? Enter the electron-domain geometry of the molecule.
b. What is the molecular geometry of BrF5?
c. Ignoring lone-pair effects, what is the smallest bond angle in BrF5?
d. Which choice best describes the polarity of BrF5?
The molecule is polar and has polar bonds.
The molecule is nonpolar and has polar bonds.
The molecule is polar and has nonpolar bonds.
The molecule is nonpolar and has nonpolar bonds.
e. Of the molecules below, only ________ is polar.
H2
SiS2
CH4
AsH3
PF5
(a) Electron domain geometry - Octahedral.
(b) Molecular geometry - Square pyramidal.
(c) Smallest bond angle - 90°
(d) The polarity of BrF₅, best choice is: The molecule is polar and has polar bond.
(e) AsH₃ is polar molecule.
What is polar and non-polar molecule?A molecule's valence shell electrons are shown in a very simple manner via a Lewis structure. It serves as a visual representation of how the electrons surrounding certain molecules' atoms are positioned.
It demonstrates the bonds that exist between a molecule's atoms and its lone pairs of electrons. When used in conjunction with hybrid orbitals, Lewis structures can also be helpful in predicting molecular geometry.
(a) Electron domain geometry - Octahedral.
(b) Molecular geometry - Square pyramidal.
(c) Smallest bond angle - 90°
(d) The polarity of BrF₅, best choice is: The molecule is polar and has polar bond.
(e) AsH₃ is polar molecule.
To know more about geometry refer to:
https://brainly.com/question/20274710
#SPJ1
In the reaction C2H6O, O2, CO2, and H2O What element is oxidized? What element is reduced? What molecule is oxidizing agent? What molecule is reducing agent?
In the reaction C2H6O, O2, CO2, and H2O this is an oxidation-reduction reaction. C2H6 is a reducing agent, and O2 is an oxidizing agent.
What does mean of oxidation and reduction?Oxidation:- Oxidation is a process which involves the addition of oxygen or any electronegative element or the removal of hydrogen or any electropositive element.
Oxidation is defined as the process in which an atom or ion loses one or more electrons.
Reduction:- Reduction is a process which involves the addition of hydrogen or any electropositive element or the removal of oxygen or any electronegative element.
Reduction is defined as the process in which an atom or ion gains one or more electrons.
To know more about Oxidation and reduction, visit:-
https://brainly.com/question/3259533
#SPJ4
at 273 k, ice and liquid water are in equilibrium. what relation then must be true of the vapor pressures of pure ice and pure liquid water at 273 k?
Relation then must be true of the vapor pressures of pure ice and pure liquid water at 273 k are cooling impact of ice at 273 K is greater than that of water at the same temperature because ice absorbs more heat to overcome the latent heat of fusion.
How does latent heat work?The energy needed to induce a change in the material's physical state, which results in the production of the liquid, is known as latent heat of fusion. It must be applied to solid matter.
The cooling effect of ice at 273 K is due to the absence of latent heat and hidden heat, which are present in water and cause them to be less chilly than ice at the same temperature.
To know more about latent heat work visit:-
https://brainly.com/question/28044951
#SPJ4
