Each reation releases or absorbs a very large amount of energy per atom.

Chemistry

2 answers:

mario62 [17]3 years ago

4 0

Answer:

chemical and nuclear reaction

Explanation:

Nutka1998 [239]3 years ago

3 0

Answer: Option (D) is the correct answer.

Explanation:

A chemical reaction is defined as a reaction that involves exchange of electrons between the combining atoms. Not every chemical reaction releases or absorbs a very large amount of energy per atom.

On the other hand, a reaction that involves change in atomic nuclei of an atom either by splitting or combining of two atomic nuclei is known as a nuclear reaction.

For example, $^{2}_{1}H + ^{3}_{1}H \rightarrow ^{4}_{2}He + ^{1}_{0}n + Energy$

Nuclear fission is a reaction in which a large nucleus splits by absorption of energy into two atomic nuclei. Nuclear fusion is a reaction in which two atomic nuclei combine together to result in the formation of a large atomic nuclei along with release of energy.

Each nuclear reaction releases or absorbs a very large amount of energy per atom.

Therefore, we can conclude that each nuclear reaction releases or absorbs a very large amount of energy per atom.

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What is the empirical formula of an oxide of nitrogen containing 63.61% by mass of nitrogen and 36.69% by mass of oxygen?

katen-ka-za [31]

Answer:

D. N₂O

Explanation:

Let's assume we have 100 g of the compound. That means it consists of 63.61 grams of nitrogen and 36.69 grams of oxygen.

Converting masses to moles:

63.61 g N × (1 mol N / 14.01 g N) = 4.540 mol N

36.69 g O × (1 mol O / 16.00 g O) = 2.293 mol O

Normalize by dividing by the smallest:

4.540 / 2.293 = 1.980 mol N

2.293 / 2.293 = 1.000 mol O

So there is approximately twice as many N atoms as O atoms. The empirical formula is therefore N₂O.

8 0

3 years ago

How many moles of carbon are in 3.7 moles of c8h11no2

sleet_krkn [62]

Answer:- 29.6 moles of carbon.

Solution:- We have been given with 3.7 moles of $C_8H_11NO_2$ and asked to calculate the moles of C.

Looking at the formula of the compound, there are 8 carbons in it means 1 mol of he compound has 8 moles of C. So, if we multiply the given moles of the compound by 8 then we get the moles of C.

$3.7molC_8H_11NO_2(\frac{8molC}{1molC_8H_11NO_2})$