Question

2H2g+ 02= 2h20
Calculate the number of Hydrogen molecules parti
cipated in above reaction?​

Answer 1

Answer:

L. H. S. R.H.S

Hydrogen. 2. 2

Explanation:

Total =2+2=4

Answer 2

Answer:

2H2+O2→2H2O

Molecular mass of H2=2 g/mol

Molecular mass of O2=32 g/mol

From  the balanced chemical equation,  

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