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3 years ago

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Element X has an average atomic mass of 64.32 amu. If this element consists of only two isotopes, X-64 and X-65, which isotope i

s present in the greater abundance? Explain how you can tell.

1 answer:

PIT_PIT [208]3 years ago

8 0

Answer:X-64 is closer to the atomic mass of 64.32 amu. The one on the periodic table is the isotope most common in nature.

Explanation:

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C(graphite) + O2(g) → CO2(g) + 94.05 kcal C(diamond) + O2(g) → CO2(g) + 94.50 kcal What could you infer from the information giv

olga nikolaevna [1]

Looking at both reactions, we can see that the combustion of carbon, graphite or diamond, leads to the formation of carbon dioxide and energy. Since energy is a product of the reaction, we known that this is an exothermic reaction. The value of the change in enthalpy, ΔH, will be negative.

A negative value of ΔH in each exothermic reaction suggests that the carbon dioxide product is at a lower energy than the reactants. And since more energy is released in the combustion of diamond compared to graphite, we know that diamond has a higher internal energy than graphite.

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1) Calculate the empirical formula of a compound with 36g of carbon and 96g of oxygen.

grandymaker [24]

Answer:

C4H6

Explanation:

See attached table

Convert each of the masses into moles by dividing the mass by the molar mass of that element. That yields 3.83 moles of C and 6 moles of O. I rounded up the C to 4 moles to result in an empirical formula of C4H6

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2 years ago

What is an example of a change in genetic traits of an organism do to human affect

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Answer:

A person's skin color, hair color, dimples, freckles, and blood type are all examples of genetic variations that can occur in a human population.

Explanation:

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Why does the velocity of catalyzed reaction reach maximum at certain<br> concentration of enzyme?

OleMash [197]

Answer:

Because the total energy of the enzyme has been used up and actions already complete

Explanation:

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hydrogen decomposes quickly when exposed to light. the reaction for decomposing hydrogen peroxide is:

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The decomposition reaction for hydrogen peroxide is given below:

2 $H_{2}$ $O_{2}$ → 2 $H_{2}$ O + $O_{2}$

This is a decomposition reaction.

Reactions in which a reactant breaks into two or more products are known as Decomposition reactions.

AB → A + B

here, AB represents the reactant that begins the reaction, and A and B represent the products of the reaction

The decomposition reaction of decomposing hydrogen peroxide is exothermic. When the hydrogen peroxide undergoes a decomposition reaction, heat is also released along with water and oxygen.

Hence the reaction for decomposing hydrogen peroxide is :

2 $H_{2}$ $O_{2}$ → 2 $H_{2}$ O + $O_{2}$

If you need to learn more about Decomposition reaction, click here

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