a compound containing chromium and silicon contains 73.52 mass percent chromium. determine its empirical formula.

Answers

Answer 1

Empirical formula for a compound containing chromium and silicon  is Cr₃Si₂.

What is empirical formula?

Empirical formula is the chemical formula of a compound that gives the proportions of the elements present but not the actual numbers or arrangement of atoms. This is the lowest whole number ratio of the elements in the compound.

Given, Percentage of Cr is 73.52

Atomic Mass of Cr is 52

So, percentage of Si is 100-73.52= 26.48

Atomic mass of Si is 28

So, moles of Cr= 73.52/52

= 1.413mol

And moles of Si= 26.48/28

=0.9157mol

Now, ratio of mass of Cr and Si;

=1.413:0.9157

=3:2

Therefore, empirical formula is Cr₃Si₂.

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Related Questions

the aerobic decomposition of biomass produces significant quantities of methane. question 15 options: true false

Answers

The statement given is "False" that The Aerobic decomposition of biomass produces significant quantities of Methane.

What is aerobic decomposition?

The decay or breaking down of organic material in the presence of free or dissolved oxygen (DO).

What does aerobic decomposition produce?

Compost, water (both liquid leachate and gaseous vapor), and volatilized gases are all products of aerobic composting (ammonia, carbon dioxide and, occasionally, gases perceived as odors). Digestate and biogas are created during anaerobic digestion.

Is aerobic decomposition faster than anaerobic?

You can get finished compost sooner if there is enough air available because aerobic decomposers function faster and more effectively than their anaerobic cousins.

The aerobic composting produces water vapor, carbon dioxide and a black organic material.

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Which equation is correct?
A) mechanical energy = kinetic energy-potential energy
B) mechanical energy = potential energy - kinetic energy
C) mechanical energy = kinetic energy + potential energy
D) mechanical energy = kinetic energy x potential energy
Pls help I’m dying

Answers

The equation that is correct is as follows: mechanical energy = kinetic energy + potential energy (option C).

What is mechanical energy?

Mechanical energy is one of the forms of energy and it is the sum of the potential energy and kinetic energy of a body or system.

The potential energy is the energy possessed by an object because of its position (in a gravitational or electric field), or its condition (as a stretched or compressed spring).

On the other hand, kinetic energy is the energy possessed by an object because of its motion.

In other words, mechanical energy describes the energy of an object because of its motion or position, or both.

Therefore, option C is the correct equation.

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Look at the equation.
C₂H4 +302 2CO₂ + 2H₂O
If the reaction shown has 55.0 grams of ethylene (C₂H4) and excess oxygen (30₂), how many moles of carbon dioxide will be
produced?

Answers

The number of moles of the carbon dioxide is 3.92 moles.

What is the number of moles?

We know that the number of the moles can be obtained by the use of the equation of the reaction that has been shown in the question as; C₂H4 +302 -------> 2CO₂ + 2H₂O.

We then have that;

Number of moles of the ethylene = 55.0 grams/28 g/mol

= 1.96 moles

If 1 mole of ethylene produces 2 moles of carbon dioxide

1.96 moles of ethylene would produce x moles of carbon dioxide

x  = 1.96 * 2/1 mole

= 3.92 moles

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How specifically is kinetic energy lost during a car crash?

Answers

Most of the kinetic energy in the collision process is converted into the internal energy of the car, because the metal plastic deformation after the collision increases the internal energy a lot. Other kinetic energy is converted into heat energy, sound energy, etc.

Answer + Explanation:

During a car crash, kinetic energy is lost through various forms of deformation of the vehicle and the generation of heat.

When a car collides with another object, the force of the impact causes the vehicle's body and structure to deform. This deformation absorbs some of the kinetic energy and converts it into other forms of energy, such as heat and sound.

In addition, friction between the moving parts of the car and between the car and the road can also generate heat, which absorbs some of the kinetic energy.

The amount of kinetic energy lost during a car crash depends on the mass of the vehicle, the speed at which it was traveling, and the type and severity of the collision. In general, higher speeds and more severe collisions result in greater kinetic energy loss.

Rannan wants to perform a scientific experiment. He writes out a systematic process that involves him making observations and then forming his opinion about those observations. He then collects his opinions together and uses them to show that his findings are supported by evidence.

Answers

He shouldn't present his opinions as evidence.

What is the definition of a hypothesis?

A hypothesis is a tested assertion regarding the relationship between two or more variables or a theory put up to explain an observed occurrence in a scientific setting.

The complete population should be examined in order to ascertain whether a statistical hypothesis is accurate. As it is frequently impractical, researchers usually look at a random sample of the population. The statistical hypothesis is rejected if the sample data do not support it.

Making an experiment is the most typical method of testing a theory. A good experiment employs test subjects or establishes situations where you may determine whether your hypothesis appears to be true by assessing a wide array of of data (test results).

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Organisms typically have more than one form of each gene. If one form can mask the appearance of another form, that form is considered _______ the other form.
A.
better than
B.
dominant over
C.
recessive to
D.
worse than

Answers

If one form of a gene can mask the appearance of another form, that form is considered dominant over the other form. Option B.

What are dominant alleles?

According to Mendel, genes are usually made up of 2 alleles. These alleles can be the same or different. When the alleles are the same, the gene is said to be homozygous. If the alleles are different, the gene is said to be heterozygous.

When the two alleles that make up a gene are different, one will be dominant and the other will be recessive. The dominant gene masks the effect of the recessive gene. In other words, the recessive gene cannot be expressed as long as it coexists with the dominant gene. In order for it to be expressed, it has to be in two copies or a homozygous recessive form.

For the dominant allele, however, only one copy is needed for it to be expressed.

In summary, if one form of a gene can mask the appearance of another form, that form is considered dominant over the other form.

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One of the wavelengths of light emitted by hydrogen atoms is 6.56 x 10–7 m. Calculate the frequency.

Answers

The frequency of the light emitted by hydrogen atoms is equal to 4.57 Hz.

What are frequency and wavelength?

The frequency can be described as the number of oscillations of a wave per second. The frequency has S.I. units of per second or Hertz.

The wavelength can be defined as the distance between two crests on a wave.

The relation between wavelength, frequency (ν), and speed of light (c) can be shown as:

c = νλ

Given, the wavelength of the light, ν = 6.56 × 10⁻⁷ m

The speed of light, c = [tex]3\times 10^8m/s[/tex]

The frequency of the light can determine from the above-mentioned relationship:

ν= c/λ = 3 × 10⁸/6.56 × 10⁻⁷ = 4.57 Hz

Therefore, the frequency of the light is equal to 4.57 Hz.

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One of the wavelengths of light emitted by hydrogen atoms is 6.56 x 10–7 m. Calculate the frequency.

Answers

The frequency of the light emitted by hydrogen is equal to 4.57 Hz.

What are frequency and wavelength?

The frequency of the wave can be defined as the number of oscillations of a wave per second. The frequency has S.I. units of s⁻¹ or Hertz.

The wavelength can be described as the distance between two adjacent crests on a wave.

The relation between frequency, wavelength, and speed of light (c) can be shown as:

c = νλ

Given, the wavelength of the light emitted by H-atom, ν = 6.56 × 10⁻⁷ m

The speed of light, [tex]c =3 \times 10^8\; m/s[/tex]

The frequency of the light emitted by hydrogen atoms can determine from the above-mentioned relationship:

ν= c/λ = 3 ×10⁸/6.56 × 10⁻⁷ = 4.57 Hz

Therefore, the frequency of the emitted light is equal to 4.57 Hz.

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classify each of the following characteristics as related to fusion, fission, or both
Used in nuclear
power plants
Byproducts have
long half-lives
Needs very high
temperatures
Releases lots
of energy
Occurs on the sun
Fission only
Fusion only
Fission and fusion

Answers

Nuclear Fission include used in nuclear power plants and byproducts have long half-lives, Nuclear fusion includes occurs on the sun and needs very high temperatures, while Nuclear fission and Nuclear fusion includes release lots of energy.

What are Nuclear fission nuclear and Nuclear fusion?

Nuclear fission is a physico chemical process caused when an atom divides into two smaller atoms, which released important amounts of energy and it is used to generate electricity in nuclear power plants.

Conversely, Nuclear fusion occurs when smaller atoms such as hydrogen fuse to form larger atoms, which is able to generate much more energy when compares to Nuclear fusion, and this process fuel energy in the sun.

Therefore, with this data, we can see that fission nuclear and fusion nuclear are very different processes in terms of the division of fusion of atoms and they release differential amounts of energy.

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please answer the following​

Answers

Answer: Kinetic Energy

Explanation:

Gravitational potential energy of each drop converts to kinetic energy when water drops into a reservoir.

when 2.16g of h2 reacts with excess o2 by the following equation, 258kj of heat are released. what is the change of enthalpy associated with the reaction of 1.00mol of hydrogen gas?

Answers

when 2.16g of h2 reacts with excess o2 by the following equation, 258kj of heat are released.  the change of enthalpy associated with the reaction of 1.00mol of hydrogen gas is -241 KJ

Molar mass of H2 = 2.016 g/mol,mass(H2)= 2.16 g

use:number of mol of H2,n = mass of H2/molar mass of H2=(2.16 g)/(2.016 g/mol) = 1.071 mol

For 1.071 mol of H2, heat released = 258 KJ So,

for 1 mol, heat released = 258/1.071 KJ = 241 KJ

Since this is heat released, sign will be negative

Answer: -241 KJ. The amount of energy progressed or subsumed in a reaction at constant pressure is referred to as enthalpy change. It is represented by the symbol ΔH, read as "delta H". It should be noted that the term "enthalpy change" only pertains to reactions performed at constant pressure. As a result, if a reaction emits more electricity than it absorbs, the reaction is exothermic, and the enthalpy is negative. Consider this as a quantity of heat departing (or being deducted from) the reaction.

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Which type of isomers are o-xylene, m-xylene, and p-xylene?

structural isomers
optical isomers
geometric isomers

Answers

o-xylene, m-xylene, and p-xylene are structural isomers.

o-xylene, m-xylene, and p-xylene are examples of aromatic isomers, also known as ortho-, meta-, and para-xylene, respectively. These isomers are classified as aromatic because they are part of a family of compounds known as aromatic hydrocarbons, which contain a ring of six carbon atoms bonded to each other in a specific way.

o-xylene, m-xylene, and p-xylene are also examples of structural isomers. Structural isomers are compounds that have the same molecular formula but differ in the arrangement of their atoms. In the case of o-xylene, m-xylene, and p-xylene, the atoms are arranged differently around the ring of six carbon atoms.

o-xylene, m-xylene, and p-xylene are not optical isomers, which are also known as enantiomers. Optical isomers are compounds that are mirror images of each other but are not superimposable. Optical isomers are important in medicinal chemistry because they can have different biological properties even though they have the same molecular formula and structure.

o-xylene, m-xylene, and p-xylene are also not geometric isomers. Geometric isomers are compounds that have the same molecular formula and the same arrangement of atoms, but differ in the orientation of their atoms or groups of atoms in space. Geometric isomers are often found in compounds with cis-trans double bonds or ring structures.

allylic bromination of methylenecyclohexane would be expected to give two isomeric monobromination products. identify the other isomer. multiple choice a b c d

Answers

Two isomeric monobromination products should result from the allylic bromination of methylene cyclohexane, according to expectations. The final product will be 1-(bromomethyl)cyclohexene.

N-Bromosuccinimide, also known as NBS, is a chemical reagent utilized mostly in organic chemistry's electrophilic addition, electrophilic substitution, and radical substitution processes. It is regarded as an easy way to get bromine radicals. NBS interacts with the substance in an aqueous solution in alkenes to produce bromohydrins as the end result.

Allylic bromination is defined as the reaction employing NBS that results in the substitution of a bromine atom for hydrogens on a carbon next to a double bond.

Following  drawing of the methylene cyclohexane extended structure, the reaction will be carried out using the reagent NBS.

The IUPAC name of the product is 1-(bromomethyl)cyclohexene.

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what should be added to a separatory funnel in order to partition an acidic organic compound into the aqueous layer? group of answer choices

Answers

NaCl or NH4Cl should be added to a separatory funnel in order to partition an acidic organic compound into aqeous layer.

What is aqeous layer?

If it is difficult to tracking where the water droplets go, also keeping track of the volumes of the layers: whichever layer increased with the additional of water is the aqeous layer.

The aqeous phases is water-based and can be an acidic, basic, neutral, or a saturated salt solutions. The organic phase is an organics solvent, usually diethyl ether or dichlorophenoline, which has minimalist solubility in water. For instance, ethanol would be a poor extractions solvent because it forms a solution within water.

One methods is to add NaCl or NH4Cl should to the separatory funnels, which dissolved in the aqueous layer and Decreased the ability of organics compounds to dissolve in water ("salting out").

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A sample of gas is a closed container at a temperature of 18 celsius and a pressure of 2.5 atm is heated to 150 celsius. What pressure does the gas exert at the higher temperature?

Answers

The pressure that the gas exerts at the higher temperature would be 20.83 atm.

Gay-Lussac's law

According to Gay-Lussac's law, the pressure that a gas will exert on its container is directly proportional to the temperature of the gas, provided that the volume remains constant throughout.

This law can be mathematically expressed as:

[tex]p_1/t_1 = p_2/t_2[/tex]

Where:

[tex]p_1[/tex] is the initial pressure of a gas[tex]t_1[/tex] is the initial temperature[tex]p_2[/tex] is the final pressure[tex]t_2[/tex] is the final temperature

In this case, the initial temperature is given as 18 [tex]^oC[/tex], the initial pressure is given as 2.5 atm, and the final temperature is given as 150 [tex]^oC[/tex], We are to find the final pressure.

[tex]p_2[/tex] = [tex]p_1t_2/t_1[/tex]

   = 2.5x150/18

   = 20.83 atm

In other words, the new pressure that the gas will exert at a temperature of 150 [tex]^oC[/tex] would be 20.83 atm.

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what is the relationship between the edge length of a unit cell and atomic radius in a hexagonal closest packed crystal structure?

Answers

In essence, it refers to the measure of the length of the edge (side) of spatial figures like cubes, cuboid, and polygons as well as quadrilaterals and other 3D shapes.

For the FCC lattice, the relationship among edge length (a) with atom radius (r) is ( 2a) = 4r. For the BCC lattice, the relationship among edge length (a) with atom radius (r) is (3a) = 4r. Here, r represents the radius of a atom in the HCP, and a denotes the area of the unit cell. - Assume that each atom's radius is r. Consequently, the product of a base area and the height will be the unit cell's volume (C). Atoms in this unit cell's neighboring corners come into contact with one another, hence its edge length is equivalent to two ionic radius, and one atomic diameter. A basic cubic unit cell's constituent particle has the same radius.

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A kangaroo was 396 meters east of a lake. In 12 seconds, the kangaroo hopped one-third of the way to the lake at a constant velocity. What was the kangaroo's velocity?

Answers

The velocity of an  object is the ratio of the distance to the time. The distance travelled by Kangaroo is 396 m in 12 seconds. So its velocity is 33 m/s.

What is velocity?

Velocity is a physical quantity and it is the measure of distance travelled per unit time. Velocity is the rate of speed and it  is a vector quantity.The velocity can be expressed in terms of m/s, Km/hr etc.

Mathematically, velocity is the ratio of distance to the time.

Given that, distance covered by kangaroo is 396 meters.

time taken = 12 s.

therefore, velocity can be calculated as follows:

velocity = distance/time

             = 396 m / 12 s

             = 33 m/s.

Therefore, the velocity of the kangaroo is 33 m/s.

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Which of the following is NOT a correct formula unit for a salt made from main group elements?
Group of answer choices

KF

Na2S

Ca2O

Mg3N2

Answers

The formula unit of a salt that is not correct is [tex]Ca_{2} O[/tex] in option C.

What is a salt?

A salt is almost always made up of a metal and a nonmetal element. The salts as we know them are mostly ionic in nature and they are known to be able to dissolve in solution when they are put into solution.

We know that the salt that they meant to show in option C is calcium oxide and the foregoing can not be the correct formula since both the calcium and the oxygen ions are divalent. The correct formula of the salt would be CaO.

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Plastic beads used in jewelry making are made of long molecules usually consisting of carbon, hydrogen, and oxygen. Compare the bonding in these molecules to the bonding in gems.

Answers

There are two types of chemical compound one is covalent compound and other is ionic compound, covalent compound formed by sharing of electron and ionic compound formed by complete transfer of electron. Therefore, gems have ionic bonding and plastic beads have covalent bonding.

What is chemical Compound?

Chemical Compound is a combination of molecule, Molecule forms by combination of element and element forms by combination of atoms in fixed proportion.

An ionic compound is a metal and nonmetal combined compound.  Ionic compound are very hard. They have high melting and boiling point because of strong ion bond. Gems  have ionic bonds formed between metals and nonmetals. Plastic beads, will have covalent bonds because it is easily deformed.

Therefore, gems have ionic bonding and plastic beads have covalent bonding.

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what are the correct coefficients if the law of conservation of mass is applied to the decomposition of solid ammonium nitrite to nitrogen gas and liquid water?

Answers

The correct equations for the breakdown of solid ammonium nitrite to nitrogen gas and liquid water under the law of conservation of mass would be 1 mol of solid ammonium nitrite to 1 mol of nitrogen gas and 1 mol of liquid water.

Since matter cannot be generated or destroyed, according to the rule of conservation of mass, the total mass of the reactants and products in a chemical process must remain constant. The balanced chemical equation for the breakdown of solid ammonium nitrite is:

NH4NO2(s) N2(g) + H2O (l)

The coefficients in this equation stand for the ratio of moles of each reactant and product. According to the factors 1, 1, and 1, 1 mol of nitrogen gas and 1 mol of liquid water are created for every 1 mol of solid ammonium nitrite that is broken down. As required by the rule of conservation of mass, this indicates that the combined mass of the reactants and products remains constant.

Ammonium nitrite ,[tex]$\mathrm{NH} 4 \mathrm{NO}$[/tex], will decompose to yield nitrogen gas and water Vapor by the following equation:

[tex]\mathrm{NH}_4 \mathrm{NO}_2(s) \rightarrow 2 \mathrm{H}_2 \mathrm{O}(\mathrm{g})+\mathrm{N}_2(g)[/tex]

What is a decomposition reaction?

A decomposition reaction can be defined as a chemical reaction in which one reactant breaks down into two or more products.

Ammonium nitrite, [tex]$\mathrm{NH} 4 \mathrm{NO} 2$[/tex], will decompose to yield nitrogen gas and water Vapor by the following equation:

[tex]\mathrm{NH}_4 \mathrm{NO}_2(s) \rightarrow 2 \mathrm{H}_2 \mathrm{O}(g)+\mathrm{N}_2(g)$$[/tex]

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An apple costs $0.63. One tree produces 418 apples. The orchard has 20 trees. The apple farmer wants to trade the orange farmer 3 oranges for every 2 apples. How many oranges is he able to obtain by trading 0.64 of his orchard?

Answers

The apple farmer is able to obtain 8,034.6 oranges by trading 0.64 of his orchard.

How to determine how many oranges he is able to obtain by trading 0.64 of his orchard?

A word problem is a mathematical exercise where significant background information on the problem is presented in ordinary language rather than in mathematical notation

First, let's find the total number of apples produced by the orchard:

20 trees × 418 apples/tree = 8,360 apples

Now, let's find the number of apples that the apple farmer is able to trade: 8,360 apples × 0.64 = 5,350.4 apples

Since the apple farmer wants to trade 3 oranges for every 2 apples, he will be able to obtain:

3 oranges / 2 apples ×  5,350.4 apples = 8,025.6 oranges.

Therefore, the apple farmer is able to obtain 8,025.6 oranges by trading 0.64 of his orchard.

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Which phrase best describes what happens to the electron in an IONIC bond?
Shares equally
Gives away
Shares unequally
Sea of electrons

Answers

Answer:

Explanation:

Ionic bonds give away electrons. Only in covalent bonds are electrons shared, and depending on the polarity of the molecule, would the electrons be shared or unshared equally? The sea of electrons only refers to metallic bonds.

Therefore: Ionic bonds give away electrons.

What is the correct molecular formula for the compound magnesium chromate pentahydrate?

MgCrO4•5H2O is the answer

Answers

The correct molecular formula for the compound magnesium chromate pentahydrate is as follows: MgCrO₄•5H₂O.

What is molecular formula?

Molecular formula in chemistry is a notation indicating the number of atoms of each element present in a compound.

Chemical or molecular formula is a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, commas and plus (+) and minus (−) signs.

The chemical formula also reveals information about the types and number of atoms that make up a chemical compound or molecule.

For example; a chemical compound named magnesium chromate pentahydrate will have a chemical formula of MgCrO₄•5H₂O.

This tells us that the compound contains magnesium, chromium, oxygen, and hydrogen atoms.

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color of the solution in the control changed? 4) infer. when you began the experiment, was there co2 in the water? in the test tubes that contained elodea, where did the co2 go?

Answers

The water was, indeed, green. This signifies a low carbon dioxide level. Carbon dioxide was utilized in the photosynthesis activity in the tubes containing Elodea.

Carbon dioxide is a compound consisting of molecules that are covalently double bonded to two oxygen atoms. At ambient temperature, it appears to exist as just a gas. Carbon dioxide in the atmosphere is translucent to visible to the human eye but soaks up infrared light, acting as a greenhouse gas. Photosynthesis is the process that plants as well as other microbes use to convert chemical energy into light that can then be released to power the individual's activities via cellular respiration.

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ion x has a charge of 2 , and ion y has a charge of 1-. what is the formula unit of the compound formed from the ions?

Answers

if ion x has a charge of 2 , and ion y has a charge of 1- the formula will be XY2. Positively and negatively charged ions can combine to produce compounds known as ionic compounds.

By losing electrons, positively charged ions are created. Gain of electrons results in the formation of negatively charged ions. The synthesis of ionic chemicals two negatively charged ions of Y are necessary for the creation of a neutral  ionic compound when they combine with an ion X that has a charge of 2+ and an ion Y that has a charge of 1-.

The ionic substance they produce has the following chemical formula:

X²⁺ + 2Y⁻ ---> XY₂

Consequently, XY2 is the ionic compound

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What element is represented by the following orbital diagram?
(Hint: Use your periodic table.)

Answers

The element Mg is depicted by the orbital diagram below (magnesium).

What is called element?

A fundamental object that is difficult to divide into smaller bits is known as an element. In chemistry and physics, a substance is considered an element if non-nuclear reactions cannot degrade it. In computers and mathematics, an element is a discrete part of a larger system or collection. A chemical element and element is any compound that is not divided into simpler compounds by normal chemical processes. Elements are the building blocks that make up all matter.

Who first define an element and how it is form?

French scientist Antoine Laurent Lavoisier (1743–1744) was the first to define an element in a way that was practical for experiments. According to his definition, an element is a fundamental type of matter that cannot undergo chemical transformation into a simpler material.

We now know that the universe's elements are created by nuclear fusion reactions, which combine smaller nuclei into larger ones by applying extreme heat and pressure.
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Question is in the image

Answers

To see the number of atoms of an element in a given molecule we need to multiply stoichiometry to the number that is written on the foot of the element that is stoichiometry. Therefore, the given figure represents the atom.

What is atom?

Atom is the smallest particle of any element, molecule or compound. Atom can not be further divided. Atoms contains nucleus in its center and electron that revolve around the atom in fixed orbit.

In the nucleus, proton and neutron are present. Electron has -1 charge while proton has +1 charge. Neutron is neutral that is it has no charge. So overall the charge of nucleus is due to only proton, not by neutron.

The circles that are in center represents nucleus. The two bigger circles represents orbitals. The cross sign represents electrons. The outermost bigger circle represents the valence shell and the electron in this shell represents the valence electron.

Therefore, the given figure represents the atom.

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which of the following statements is false regarding the equilibrium constant, kc?13)a)the numerical value of kc depends on the form of the balanced equation.b)kc for a reaction at a particular temperature always has the same value.c)when quoting kc it is customary to omit units.d)kc for the reverse reaction is the negative of kc for the forward reaction

Answers

Kc for the reverse reaction is the negative of Kc for the forward reaction is the false statement.

What is equilibrium constant?

The equilibrium constant of any chemical reaction is the value of its own reactions quotient at chemicals equilibrium, a State approaches by a dynamically chemicals systems after sufficient times has elapsed at which is in its compositions has no measurable tendency towards furthermore change.

As we know,

Value of Kc for the reverse reaction is always in the from of reciprocal.

Let's take

A<----------------> B,Kc

For reversion reaction we have to take

B<------------------>A,1/Kc

In this equation all the statement are correct.

Thus Kc for the reverse reaction is the negative of Kc for the forward reaction is the correct answer.

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The characteristics of two different types of reactions are shown below: Reaction A: Electrons are gained by the atoms of an element. Reaction B: Protons are lost by the atom of an element. Which statement is true about the atoms of the elements that participate in the two reactions? a Their identity changes in both Reaction A and Reaction B. b Their identity changes in Reaction A but not in Reaction B. c Their identity changes in Reaction B but not in Reaction A. d Their identity remains the same in both Reaction A and Reaction B.

Answers

Answer:

C: B's identity changes, but not A's identity. The identity of an element is solely dependent on the number of protons. For example, 2 protons in an element would be Helium. But if you add or subtract protons you would get a different element like Hydrogen or Lithium. However, such a rule does not apply to electrons; adding or removing electrons would just change the charge of the element, but not the identity.

c is the correct choice

Classify the components as most accurately describing cofactors, coenzymes, or neither. Cofactors Coenzymes Neither Answer Bank lipase inorganic ion ascorbic acid CoQ FAD

Answers

The correct classification of the given substances as cofactors or coenzymes are as follows:

lipase - neitherinorganic ion - cofactorascorbic acid - coenzymeCoQ - coenzymeFAD - coenzyme

What are coenzymes and cofactors?

A coenzyme is any small molecule that is necessary for the functioning of an enzyme. They are required by many enzymes for catalytic activity.

Coenzymes are often vitamins, or derivatives of vitamins. Sometimes they can act as catalysts in the absence of enzymes, but not so effectively as in conjunction with an enzyme.

Cofactors, on the other hand, are substances, especially a coenzyme or a metal, that must be present for an enzyme to function.

Coenzymes are organic molecules and quite often bind loosely to the active site of an enzyme and aid in substrate recruitment, whereas cofactors do not bind the enzyme.

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