Question

balance the chemical equation.
Ag+O2 give rise to Ag2O,
H2+N2 give rise to NH3,
Ca+H2O give rise to Ca(OH)2+H2,
Na+O2 give rise to Na2O

Answer 1

4Ag + O2 - 2 Ag2O
3H2+N2 _ 2NH3
Ca+ 2H2O_ Ca( OH)2 + H2
4Na + O2 - 2Na2O

Answer 2

hope this will help uh ...
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