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Tems11 [23]
3 years ago
6

How many different elements are in nine substances

Chemistry
1 answer:
Veronika [31]3 years ago
3 0
You are made of mostly 6 elements: Oxygen, Carbon, Hydrogen, Nitrogen, Calcium, and Phosphorus. Some of these elements combine to form compounds in your body.
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For the reaction shown, calculate how many moles of NH3 form when 16.72 moles of reactant completely reacts:
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Answer : The moles of NH_3 formed are, 22.3 moles.

Explanation : Given,

Moles of N_2H_4 = 16.72 mol

The given chemical reaction is:

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From the balanced chemical reaction, we conclude that:

As, 3 moles of N_2H_4 react to give 4 moles of NH_3

So, 16.72 moles of N_2H_4 react to give \frac{4}{3}\times 16.72=22.3 moles of NH_3

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