1) H2SO4+2NaOH → Na2SO4+2H2O
2)Zn+2HCl → ZnCl2+H2
3) CuO+H2SO4 → CuSO4+H2O
4) H2SO4+BaCl2 → BaSO4↓+2HCl
1) H2SO4+2NaOH → Na2SO4+2H2O
2)Zn+2HCl → ZnCl2+H2
3) CuO+H2SO4 → CuSO4+H2O
4) H2SO4+BaCl2 → BaSO4↓+2HCl