Ionic compounds
Sodium Chloride
NaCl
H₂O
Sodium + Chlorine → Sodium chloride
2Na+Cl2→2NaCl
Balance H2+O2→H2O
2H2+O2→2H2O
Calcium Chloride
CaCl
Carbon dioxide
CO₂
Magnesium + Oxygen → Magnesium oxide
2Mg+O2→2MgO
Balance Fe+O2→Fe2O3
4Fe+3O2→2Fe2O3
Potassium Chloride
KCl
Nitrogen Oxide
NO
Methane + Oxygen → Carbon dioxide + Water
CH4+2O2→CO2+2H2O
Balance C3H8+O2→CO2+H2O
C3H8+5O2→3CO2+4H2O
Magnesium Oxide
MgO
Phosphine
PH3
Balance Zn+HCl→ZnCl2+H2
Zn+2HCl→ZnCl2+H2
Potassium Bromide
KBr
Hydrogen Sulfide
H2S
Balance Al+HCl→AlCl3+H2
2Al+6HCl→2AlCl3+3H2