In the equation: 2H2 + O2 --> 2H2O

What mass of Hydrogen Gas will completely react with 4 moles of Oxygen gas

(Hint: going from moles to mass of another compound)
A)8 g
B)16 g
C)24 g

B) 16 g

Explanation:

First we convert 4 moles of O₂ into moles of H₂, using the stoichiometric coefficients of the balanced reaction:

Finally we convert 8 moles of H₂ into grams, using its molar mass:

Thus, the correct answer is option B).

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explanation:

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