Question

Допишите уравнение химических реакций:
P2O5 + ? = H3PO4
Na+ HCl = ? + ?
H2O2 = O2 + ?
? + H2= HCl
Zn+ H2O = H2 + ?
H2O = ?+ ?
CuO + H2 = ? + ?
Ca + ? = CaCl2 + H2

Answer 1

Na+HCl=H2+NaCl Cl2+H2=2HCl Zn+H2O=H2+ZnO 2H2O=2H2+O2 CuO+H2=H2O+Cu Ca+2HCl=CaCl2+H2