How many grams of water can be produced from 15 grams of hydrogen
2H2 + O2 —> 2H2O

135g

Explanation:

The equation for the reaction is given below:

2H2 + O2 —> 2H2O

Next, let us calculate the mass of H2 that reacted and the mass of H2O produced from the balanced equation. This is illustrated below:

Molar Mass of H2 = 2x1 = 2g/mol

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

Molar Mass of H2O = (2x1) + 16 = 2 + 16 = 18g/mol

Mass of H2O from the balanced equation = 2 x 18 = 36g

From the balanced equation,

4g of H2 produced 36g of H2O.

Therefore, 15g of H2 will produce = (15x36)/4 = 135g of H2O

From the calculations made above, 15g of H2 produced 135g of water (H2O)

your answer would be “dry”

you did not give any options thus this is the best answer i can give to you with this little information you have given

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