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-Dominant- [34]
3 years ago
8

Which 2 elements make up the most mass in the human body?

Chemistry
2 answers:
liq [111]3 years ago
8 0

Answer: Oxygen and Carbon

Explanation:

Kay [80]3 years ago
3 0

Answer:po.op and pi.ss

Explanation:

This is a right answer

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If 45.6 grams of water decompose at 301 Kelvin and 1.24 atmospheres, how many liters of oxygen gas can be produced? Show all of
Artyom0805 [142]

This reaction is called the electrolysis of water. The balanced reaction is:

 2H2O = 2H2 + O2

<span>
We are given the amount of water for the electrolysis reaction. This will be the starting point of our calculation.

45.6 grams H2O (1 mol H2O / 18.02 g H2O) (1 mol O2 / 2 mol H2O) = 1.27 mol O2

V = nRT/P = </span><span>1.27 mol O2 (0.08206 atm L / mol K) (301 K) / 1.24 atm
V = 25.20 L O2</span>
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