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Gwar [14]
3 years ago
8

I’m not sure what the answer is

Chemistry
2 answers:
Sergio [31]3 years ago
7 0
I believe it’s the third option
Chemically combined to make a new pure substance
Katyanochek1 [597]3 years ago
4 0
I’m not 100% sure but I think it’s the last one
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Explanation:

2H2 + O2 —> 2H2O

First, we calculate the molar masses of H2 And H20.

Molar Mass of H2 = 2g/mol

Mass conc of H2 from the balanced equation = 2 x 2 = 4g

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From the equation,

4g of H2 produced 36g of H2O

Therefore, 10g of H2 will be produce = (10x36)/4 = 90g of H2O

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