Question

2H2+o2--2h2o calculate the number of hydrogen molecules participated in above reaction?​

Answer 1

Answer:

2H

2

+O

2

→2H

2

O

Molecular mass of H

2

=2 g/mol

Molecular mass of O

2

=32 g/mol

From the balanced chemical equation,

2×2=4 g of hydrogen requires 32 g of Oxygen to react completely

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