1. NaCl + AgNO3 = NaNO3 + AgCl↓
2. NaCl + H2SO4 = NaHSO4 + HCl↑
3. 2HCl + Fe = FeCl2 + H2↑
Fe0
– 2e-
= Fe+2 1
2H+ + 2e-
= H2
0 1
4. H2 + CuO = Cu + H2O
H2
0
- 2e-
= 2H+ 1
Cu2+ +2e-
= Cu0 1
1. NaCl + AgNO3 = NaNO3 + AgCl↓
2. NaCl + H2SO4 = NaHSO4 + HCl↑
3. 2HCl + Fe = FeCl2 + H2↑
Fe0
– 2e-
= Fe+2 1
2H+ + 2e-
= H2
0 1
4. H2 + CuO = Cu + H2O
H2
0
- 2e-
= 2H+ 1
Cu2+ +2e-
= Cu0 1