Question

Химические уравнения:

1)Zm+CuCl₂->ZmCl₂+Cu
2Al₂O₃+H₂->Al+H₂O
3)Ca+O₂->.......
4)PH₃+O₂->P₂O₅+H₂O

Answer 1

Zn + CuCl2 = ZnCl2 + Cu

Al2O3 + 3H2 = 2Al + 3H2O

2Ca + O2 = 2CaO

2PH3 +4 O2 = P2O5 + 3H2O