State two ways that active transport is different from diffusion.
Answer: Active transport goes against the gradient causing it to use ATP (energy) unlike diffusion which uses passive. Two types of diffusion are simple diffusion and facilitated diffusion, whereas two types of active transport are primary and secondary active transport.
Explanation: Active energy uses more energy to function rather than diffusion which has multiple types causing it to be different from active transport. Hope this helps!!
Write a nuclear equation for plutonium-241 emitting gamma radiation?
⁹⁴Pu₂₄₄-------> ⁹⁵Am₂₄₃ + electron is a nuclear equation for plutonium emitting gamma radiation
What radiation does plutonium 241 emit?Alpha particles plutonium is created in an activator when uranium atoms absorb neutrons. Nearly all plutonium is man-made. Plutonium mainly emits alpha particle is a type of radiation that is easily ceased and has a short range. It also emits neutrons, beta particles, and gamma rays. It also emits neutrons, beta particles, and gamma rays.
It is contemplated toxic, in part, because if it were to be inhaled it could deposit in the lungs and finally cause damage. There are five common isotopes of plutonium because it emits alpha particles, plutonium is most menacing when inhaled.
So we can conclude that Plutonium isotopes emit alpha rays except for plutonium-241 for which the energy of beta electrons is curiously low.
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The percent ionic character of a bond ______ with δen. An arbitrary value of ______ divides ionic from covalent bonding.
The percent ionic character of a bond increases with δen. An arbitrary value of 50% ionic character divides ionic from covalent bonding.
What is covalent bond explain?When two or more atoms share one or more couples of electrons, a covalent connection is created. These electrons are being drawn to the two neutrons and protons at the same time. A covalent bond is created when the difference between the two atoms' electrical configurations gets too small for an electrochemical reaction to happen and produce ions.
What characteristics do covalent bonds have?Bonds between atoms in covalent compounds share electrons. They possess distinctive physical characteristics, such as lower melting temperatures and electrical conductivity contrasted to ionic compounds, as a result of the sharing of electrons.
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state any three properties that can be used to classify elements
Answer:
The elements on the Periodic Table have been organized into groupings based on the chemical and reactive properties of the elements. The three major groups are the metals, nonmetals, and metalloids. The metals towards the left and lower parts of the Table tend to give up electrons in chemical bonding. The nonmetals to the right and upper parts of the Table tend to accept electrons in chemical bonding. The metalloids some say have an identity crisis and are a band of elements in between the metals and nonmetals which can show characteristics of the bordering groups depending on the type of bonding or chemical reaction. This group is also the foundation of our semiconductor, integrated circuit industries.Other groupings of the elements are into "families" based on the chemical nature of the elements. Some of these are the alkali metals, alkaline earth metals, transition metals, chalcogens, halogens, and inert/noble gases. There is also a semi-grouping of elements above atomic number 83 as these tend to be unstable and show natural radioactivity. Additionally, one could group the elements based on their physical states at room temperatures, such as solids, liquids, and gases.
In all both, chemical and physical properties are used to classify and group elements into useful associative collections based on these attributes. It simply depends on the purpose for the classification.
draw the lewis structures for each molecule in the table…
A gas is heated from 213.0k to 498.0k and the volume is increased from 23.0 liters to 55.0 liters by moving a large piston within a cylinder. If the original pressure was 1.15 atm, what would the final pressure be?
Include the following within your answer :
Which gas law did you use?
The numerical answer to the question.
An explanation of the correct number of significant figures you will use for the numerical answer.
Final pressure be P₂ = 0.9777 atm.
given data:-
data provided
Volume at first = 23.0 L
1.15 atm initial pressure
The starting temperature is 213.0 K.
498.0 K is the final temperature.
Volume completed: 55.0 L
Final pressure =?
Briefly:-
The generic gas equation states:
P1V1/T1 = P2V2/T2
P1V1/T1 = P2V2/T2 is a formula.
Initial pressure is P1.
Initial volume: V1
Initial temperature is T1.
Final pressure is P2.
Final volume is V2.
T2 = Actual temperature.
P2 = P1V1 T2/ T1 V2 P2 = 1 atm 23.0 L 498.0 K / 213.0 K 55.0 L
P2 = 11454 atm .L. K / 11715 K.L
P₂ = 0.9777 atm.
A piston pressure is defined.The piston force, sometimes referred to as piston cylinder force, is the force applied to the piston while it is under cylinder pressure. An illustration of this force can be seen in a hydraulic system.
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how much current is needed to plate 5g of Copper metal on a cathode from a copper sulfate, CuSO4 solution in 2 hours?
33× 10⁻⁷ A current is needed to plate 5g of Copper metal on a cathode.
Explain faraday's law of electrolysis.It states that during electrolysis, the amount of chemical reactions occurring at the electrodes under the influence of electrical energy is proportional to the amount of electricity conducted through the electrolyte.
n = zFQ
Where, n = moles of copper metal
n = 5/63.54
n = 0.078 moles
z = Number of electrons in the half-cell reaction
Cu²⁺ + 2e⁻ ⇔ Cu
z = 2
F = Faraday constant (96,485 A/mol)
Now, substitute the values in the equation mentioned above:
0.078 = 2 × 96,485 × Q
Q = 4.04 × 10⁻⁷ C
Since Q = I × t
Where, Q = charge
I = Current
t = Time (2 hours or 120 min.)
4.04 × 10⁻⁷ C = I × 120
I = 4.04 × 10⁻⁷/120
I = 33× 10⁻⁷ A
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A concept can help you translate solutions and related data into basic themes.
A concept can help you translate solutions and related data into basic themes is a false statement.
What does the core idea mean?Basic Concepts are those nouns, verbs, and prepositions that let us understand and describe the world. In the context of the home, kindergarten, and school, these ideas are typically learnt as an essential component of the process of language acquisition.
Therefore, note that Action research is the process of carrying out research and turning the results into useful information that practitioners can use to solve issues and boost organizational effectiveness.
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See full question below
A concept can help you translate solutions and related data into basic themes. True or false
what is the ph of a buffer in which the concentration of benzoic acid, c6h5cooh, is 0.075 m and the concentration of sodium benzoate, nac6h5coo, is 0.050 m ?
The answer is 4.02.
Benzoic acid is a weak acid and sodium hydroxide is a strong base. Benzoic acid and sodium hydroxide react to form sodium acetate and water to form a buffer solution. pH can be measured by measuring the voltage developed between two special electrodes immersed in a liquid solution.
Special glass electrodes are called measuring electrodes. It neutralizes benzoic acid to produce benzoate ions, which enter the water layer, leaving two other organic compounds in the ether. Similarly, nitroaniline does not dissolve under neutral or basic conditions but dissolves in acidic solutions. This clearly shows that formic acid is a stronger acid than benzoic acid.
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ammonium perchlorate is the solid rocket fuel that was used by the u.s. space shuttle and is used in the space launch system (sls) of the artemis rocket. it reacts with itself to produce nitrogen gas , chlorine gas , oxygen gas , water , and a great deal of energy. what mass of oxygen gas is produced by the reaction of of ammonium perchlorate? be sure your answer has the correct number of significant digits.
The numerical coefficients in a balanced chemical process describe the species-mole ratio. This mole ratio is used to compare two species' chemical compositions.
Take into account the balanced reaction for ammonium perchlorate's breakdown:
2 → N₂ + Cl₂ + 4H₂O + 2O₂
We can see from the aforementioned reaction that the amount of ammonium perchlorate that will react and the amount of oxygen gas that will be created are equal. Using the molar mass of 117.49 g/mol to calculate the moles of ammonium perchlorate
moles NH₄ClO₄ = 4.4 g / (117.49 g/mol) = 0.03745 mol
moles O₂ = 0.03745 mol
The oxygen gas moles will then be converted to mass (molar mass = 32 g/mol).
mass O₂ = 0.03745 mol * 32 g/mol = 1.2 g.
Therefore, the mass of oxygen gas produced by the reaction of ammonium perchlorate is 1.2 grams.
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COMPLETE QUESTION:
Ammonium perchlorate, NH₄ClO₄, is the solid rocket fuel used by the U.S. Space Shuttle. It reacts with itself to produce nitrogen gas N₂, chlorine gas Cl₂, oxygen gas O₂, water H₂O, and a great deal of energy. What mass of oxygen gas is produced by the reaction of 4.4g of ammonium perchlorate?
what is the ph at the equivalence point of a weak base-strong acid titration if 20.00 ml of naoclrequires 28.30 ml of 0.50m hcl to reach the equivalence point? ka
The pH at the equivalence point will be 4.028
Volume of NaOCl = 20.00 ml
Volume of HCl = 28.30 ml
Molarity of HCl = 0.50 M
Ka = 3.0 × 10⁻⁸ (missing in question)
pH of solution at eq. point = ?
Write the chemical equation
NaOCl + HCl → HOCl + NaCl
Initial concentration of reactants and products are as:
NaOCl = 20 × M
HCl = 28.3 × 0.50
HOCl = 0
NaCl = 0
Equivalence point concentration of reactants and products are as:
NaOCl = 0
HCl = 0
HOCl = 28.3 × 0.5
NaCl = 28.3 × 0.5
As NaCl is a neutral salt so we take the concentration of HOCl
[HOCl] = 28.3 ml × 0.5 M / 48.3 ml (total volume)
[HOCl] = 0.2929 M
Now calculate the pH
pH = 1/2 [pKa - log C]
pH = 1/2 [ (8 - log 3) - log 0.2929]
pH = 4.028
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The percent ionic character of a bond ______ with δen. An arbitrary value of ______ divides ionic from covalent bonding.
As we know that, bond polarity and the ionic character of any compound increases with raise in the difference of the electronegativity.
The percentage of ionic character of the bond increases with δen. An arbitrary value of 50% ionic character separates ionic from covalent bonding.
What does covalent bonding explain?
When two or more atoms share one or more pairs of electrons, a covalent bond is formed. These electrons are attracted to two neutrons and protons simultaneously. A covalent bond is formed when the difference between the electrical configurations of two atoms is too small for an electrochemical reaction to occur and ions to be produced.
What properties do covalent bonds have?
Bonds between atoms in covalent compounds share electrons. They have distinct physical properties, such as lower melting points and electrical conductivity than ionic compounds, due to the sharing of electrons.
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The mystery element is in group 2 period 6. It has an atomic weight of
137.33. What element is this, and how many protons and electrons and neutrons does it have
The element that is present in group 2 and period 6 of the periodic table is Barium. The number of electrons here is 56, proton is 56 and neutron is 81.
Periodic table is systematic arrangement of the all the known elements, where the elements are arranged in the order of their atomic number. This table helps the for quick understanding of individual properties such as as their mass, electron number, electron configuration and their unique chemical properties.
The columns of the periodic table are called the groups. There are 18 groups in total. Members of the same group in the table have the same number of electrons in the outermost shells of their atoms and form bonds of the same type.
The horizontal rows are called periods. Periods represents to the relationship of orbitals, or likely areas in which electrons will be found, inside the outermost shell of the atom. As we go down the period the more of electron cloud around the nucleus increases. There are total 7 periods in the periodic table.
If we read the periodic table then we will understand that the element which is present in group 2 and period 6 with atomic weight 137.33 is Barium. As the atomic number of Barium is Z=56 so Np=Ne=56. remaining is 81 which is the number of neutrons.
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b. explain why water is so good at pulling apart ionic compounds. what do the water molecules do to keep the ions dissolved?
This is related to how polar each water molecule is.
Each water (H2O) molecule has an electric charge on its side of hydrogen, which is slightly positive, and on its side of oxygen, which is slightly negative. It facilitates the separation of ionic compounds into their positive and negative ions in water.
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what are the ain properties of carbon that explains its presence as a base element of organic compounds
Properties of carbon that explain its presence as a basic element of organic compounds - Catenation and Tetravalent.
Carbon is a chemical element with the symbol C and atomic number 6 (it contains 6 protons in its nucleus). As a member of group 14 in the periodic table, it is non-metallic and tetravalent – making four electrons available to form covalent chemical bonds.
The most common isotope of carbon has 6 protons and 6 neutrons and has an atomic mass of 12.0107 AMU. Its basic electronic configuration is 1s22s22p2.
Properties of carbon that explain its presence as a basic element of organic compounds -
Carbon has the ability to form very long chains of strong and stable interconnecting C-C bonds. This property, called catenation allows carbon to form an almost infinite number of compounds.
Carbon has an affinity for bonding with other small atoms, including other carbon atoms, through the formation of stable covalent bonds. Despite the fact that it is present in a huge number of compounds, carbon is weakly reactive compared to other elements under normal conditions.
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hydrocarbons with double bonds do not have free rotation around the double bond. this is most closely related to:
This is closely related to pi bonds in double and triple bonds prevent these bonds from rotating.
This rigidity has an effect on the physical structure of compounds and can influence chemical reactivity. Here double bonds contain pie orbitals, they are not free to rotate.
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at the standard temperature , the pressure inside an lp [propane] gas cylinder is 883 kpa. what is , the absolute pressure inside the gas cylinder when it is full, and when it is completely empty?
984 kpa is the absolute pressure of gas cylinder when full.
101 kpa is the absolute pressure of gas cylinder when it’s empty.
Pressure is the force exerted on a particular surface area and we know that Absolute pressure is equal to the sum of gauge pressure and atmospheric pressure .Barometric pressure is the best example for absolute referenced pressure. Absolute pressure is measured in N/m² or pascal & kpa which is short for kilopascal
P(absolute)=P(gauge)+P(atm)
Here P(gauge) is pressure due to the contents present inside the cylinder
P(atm) is the pressure exerted by the atmosphere
=>883 kpa+101 kpa =984 kpa when full
Note that when the cylinder is empty the gauge pressure is zero as there is no substance to exert pressure So, only atmospheric pressure is exerted.
P(absolute)=0(because the cylinder is empty) + 101 kpa
Therefore P(absolute) =101 kpa when cylinder is empty.
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onsidering that the naoh should be within a few percent of 0.30 m, what volume (in ml) would you expect to use for your third trial with 2.0453 g of khp?
The volume (in ml) would we expect to use for our third trial with 2.0453 g of KHP will be 33.0 ml
Molarity of NaOH = 0.30 molar
Mass of KHP = 2.0353 G
Molar mass of KHP = 204.2 g/mol
Volume of NaOH = ?
First we will find out the number moles of KHP
number of moles = mass / molar mass
number of moles of KHP = 2.0453 g / 204.2 g/mol
number of moles of KHP = 0.010 mol
Now we will find out the volume of NaOH
volume = number of moles / molarity
volume of NaOH = 0.010 mol / 0.30 M
volume of NaOH = 0.033 L
Conver L to ml
volume of NaOH = 0.33 L * 1000
volume of NaOH = 33.0 ml
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without tasting, smelling, or removing either layer from the container, how can you clearly determine which layer is the aqueous layer using just material found in a typical kitchen?
Add distilled water towards the funnel to quickly identify which layer is aqueous layer .
By adding distilled water in aqueous solution, the organic layer will be the one that decreases in size, while the aqueous layer must expand. The two layers could then be divided into their corresponding beakers.
Water inside the liquid state serves as the solvent in such an aqueous solution. In other words, water molecules surround and integrate solute (dissolved) ions as well as molecules into their web of bonds.
If it is challenging to determine in which the droplets travel, also keep note of the layers' volumes: the watery layer indicates whichever layer expands as more water is added.
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The reaction below is known as the Thermitt reaction, which is used to form molten iron to mould train tracks
together. What mass of aluminium powder is needed to react with 8.00 g of iron (III) oxide?
2 Al + Fe₂O3 —-> Al₂O3 + 2 Fe
2 Al&3irons with 2fe and 36copper
The substance that speed up the digestion stop working when they have been boiled, what does asim need to put in a fourth test tube to test this in his experiment?
He needs to put some pancreatic blood in a test tube to test for the functioning of digestion enzymes produced by the pancreas.
The objective of this experiment is to identify the substrates and substances.
An enzyme is a substance that acts as a catalyst to speed up a biochemical process. They also help in to speed up the digestion process.
The main the purpose of this experiment is to check why these enzymes aren't working properly. A pancreatic blood test needs to be done in a test tube to find out the reasons.
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Which best represents a balanced equation?
200 grams of carbon dioxide
A. 120 grams of carbon plus 20 grams of oxygen -
B. 120 grams of carbon plus 50 grams of oxygen 200 grams of carbon dioxide
C. 120 grams of carbon plus 80 grams of oxygen 200 grams of carbon dioxide
D. 120 grams and carbon plus 100 grams of oxygen - 200 grams of carbon dioxide
Answer:
i think its C i may be wrong...
Explanation:
NEED ANSWER IMMEDIATELY: 14. Problem: Uranium-238 has a mass number of 238 with 146 neutrons in the
nucleus. An isotope, Uranium-235 has 143 neutrons in the nucleus. What is
the atomic number of Uranium?
Answer:
92
Explanation:
what volume of a 0.158 m potassium hydroxide solution is required to neutralize 27.5 ml of a 0.361 m nitric acid solution?
Volume of a 0.158 m potassium hydroxide solution is required to neutralize 27.5 ml of a 0.361 m nitric acid solution is 0.0159 ml
Volume is the measure of the capacity that an object hold
Here given data is
0.158 m potassium hydroxide solution is required to neutralize 27.5 ml of a 0.361 m nitric acid solution
And the balanced equation is
HNO₃ + KOH → KNO₃ + H₂O
And from the given equation
Mole ratio of acid HNO₃ i.e (nA) = 1
Mole ratio of base KOH i.e (nB) =1
And the molarity of HNO₃ i.e (Ma) = 0.361 m
Volume of base of KOH i.e (Vb) = ?
Molarity of base KOH i.e (Mb) = 0.158 M
Volume of acid HNO₃ i.e (Va) = 27.5 ml
Then MaVa/MbVb
27.5 ml × 0.361 m /0.158 M × Vb = 1/1
9.9275 = 0.158 M × Vb
Vb = 0.158 M/9.9275
Vb = 0.0159 ml
Therefore,0.0159 ml of potassium hydroxide solution is required for the reaction
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Rubbing alcohol has a density of approximately .79 g/mL
Baby oil has a density of approximately
.83 g/mL
Would rubbing alcohol float on top of or sink underneath the baby oil?
Since the density of rubbing alcohol is lower than the density of baby oil, rubbing alcohol will float on top of the baby oil.
What is density?The density of a substance is the ratio of the mass of the substance and its volume. It is mathematically expressed as:
Density = mass/volume
It is the property that measures how densely packed the molecules of a substance are.
The density of water is approximately 1 g/mL. Substances whose densities are lower than that of water will float on while those whose densities are higher than that of water will sink in it.
Two immiscible liquid substances will either float over or sink under one another depending on their densities. The liquid with the lower density will float while the one with the higher density will sink.
Thus, if the density of rubbing alchohol is 0.79 g/mL and that of baby oil is 0.83 g/mL, it means that the rubbing alcohol will float over the baby oil.
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if you measure 0.0356 g of mg for your first trial, how many moles of hydrochloric acid would be needed to react with it? the molar mass of mg is 24.31 g/mol
0.00292 mol of HCL would be needed to react with 0.0356 g of Mg.
Mass of mg = 0.0356 g
Molar mass of mg is 24.31 g/mol
moles of mg= 0.0356/24.31
=0.00146moles
Mg+2HCL→MgCl₂ +H₂
From above equation , 1 mol of mg requires 2 mol of HCL
∴ 0.00146 mol of Mg will require =2×0.00146 mol of HCL
=0.00292 mol of HCL.
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How do you find the mass number
The mass number is always the number of protons and neutrons together
Ex: 1 protons and 3 neutrons
Mass number: 4
Atomic number (number of protons): 1
Answer:
mass= volume x density
Explanation:
weight is the measure gravitational force acting on a mass
1. What is the atom name(s) of Hydrogen Gas, Salt (Sodium Chloride), Methane, Carbon Dioxide, Oxygen Gas, Air, Water, Hydrochloride Acid, Sodium Hydroxide (lye), Carbonated Water?
Atom in
a- hydrogen gas - H atom
b - Salt = Sodium atom and chlorine atom
c - Methane - carbon , hydrogen atom
d - carbon dioxide = carbon , oxygen atoms
e - oxygen gas = oxygen atom
f - water = hydrogen and oxygen tom
g - hydrochloric acid = hydrogen and chlorine atoms
h - sodium hydroxide = sodium , oxygen and hydrogen atom
I - carbonated water - carbon , oxygen , hydrogen atoms
What is an atom ?
An atom is a particle of matter that uniquely defines a chemical element. Atoms consist of a central nucleus surrounded by one or more negatively charged electrons. Atoms, the smallest units that can decompose matter without emitting charged particles. It is also the smallest unit of matter with the characteristic properties of chemical elements. As such, atoms are the basic building blocks of chemistry.
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if 5.01 moles of ti are mixed with 7.86 moles of cl2 and 2.47 moles of ticl4 are formed, what is the percent yield of this reaction? answer in percent to 3 significant figures.
Titanium is also utilized in the construction of portable computer housings and medical implants. Despite being the ninth most prevalent element in the crust of the Earth, titanium is relatively challenging to extract from its ores. Titanium-containing oxide minerals react with solid carbon and chlorine gas to produce titanium tetrachloride and carbrabon dioxide in the first step of the extraction process.
therefore,
5.01+7.86=12.87
12.87/2.47=19.1%
Yeild Percentage is 19.1%
Minerals are naturally occurring inorganic elements or compounds with an organized internal structure, a distinctive chemical composition, crystal shape, and physical characteristics. The yield percentage is 19.1%. Quartz, feldspar, mica, amphibole, olivine, titanium, and calcite are examples of common minerals.
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determine the volume in ml of a 0.505 m naoh solution required to titrate 40 ml of 0.25 mh2 so4 solution
The volume of required NaOH is 39.6 ml
What is normality?According to the standard definition, normality is expressed as the number of grams or molar equivalents of solute present in one liter of solution. When we say equivalent, this is the number of moles of reactive moieties in the compound.
Base acidity describes the number of ionizable hydroxide groups in the base. NaOH has an ionizable hydroxide group. Hence, the normality of NaOH is 0.5125 N.
For the given case,
N₁V₁ = N₂V₂
Normality = Molarity × Basicity
For H₂SO₄ the basicity is 2
N₂ = 0.25 × 2
= 0.5 N
For NaOH the acidity is 1
N₁ = 0.505 × 1
= 0.505 N
N₁V₁ = N₂V₂
0.505 × V₁ = 0.5 × 40
V₁ = 39.6 ml
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