Balance the following chemical equation.
Na + O2 → Na2O
Ca + N2 → Ca3N2
N2 + H2 →NH3 CaCO3 +HCl → CaCl2 + CO2 +H2O
4Na + O2 → 2Na2O
3Ca + N2 → Ca3N2
N2 + 3H2 → 2NH3
CaCO3 +2HCl → CaCl2 + CO2 +H2O
Balance the following equations :
(a) N2+H2→NH3
(b) H2+O2→H2O
(c) Na2O+H2O→NaOH
(d) CO+O2→CO2
(e) Zn+HCI→ZnCl2+H2