Verified answer

Ca₃N₂ + 6 H₂O → 2 NH₃ + 3 Ca(OH)₂

9 C + 2 Al₂O₃ → Al₄C₃ + 6 CO  

2 NH₃ + H₃PO₄ → (NH₄)₂HPO₄

2 Cu(NO₃)₂ → 2 CuO + 4 NO₂ + O₂

PCl₅ + 4 H₂O → H₃PO₄ + 5 HCl

2 NO₂ + 2 NaOH → NaNO₃ + NaNO₂ + H₂O

2 Fe + 3 Cl₂ → 2 FeCl₃

2 KClO₃ → 2 KCl + 3 O₂

3 MgO + 2 H₃PO₄ → Mg₃(PO₄)₂ + 3 H₂O

2 Pb(NO₃)₂ → 2 PbO + 4 NO₂ + O₂