P+H2=PH3 N2+N=NH3 V2O5+H2=V+H2O AL+CUO-AL2O3+CU

Question

P+H2=PH3
N2+N=NH3
V2O5+H2=V+H2O
AL+CUO-AL2O3+CU

Answer 1

2P + 3H₂ = 2PH₃
V₂O₅ + 5H₂ =2V + 5H₂O
2Al + 3CuO = Al₂O₃ + 3Cu
N₂ + 3H₂ = 2NH₃