Sodium/Potassium with acids

1. a. Sodium reacts with dilute H2SO4:
2Na(s) + H2SO4(aq) → Na2SO4(aq) + H2(g)
2Na(s) + H2O(l) → 2NaOH(aq) + H2(g)
Overall: 4Na(s) + H2SO4(aq) + H2O(l) → Na2SO4(aq) + 2NaOH(aq) + 2H2(g)
b. Sodium reacts with concentrated H2SO4:
2Na(s) + 2H2SO4(l) → Na2SO4(aq) + SO2(g) + 2H2O(l)
2Na(s) + H2O(l) → 2NaOH(aq) + H2(g)
Overall: 4Na(s) + 2H2SO4(l) →Na2SO4(aq) + 2NaOH(aq) + SO2(g) + H2(g) + H2O(l)

2.a. Potassium reacts like sodium with dilute H2SO4, but more vigorously.
2K(s) + H2SO4(aq) → K2SO4(aq) + H2(g)
2K(s) + H2O(l) → 2KOH(aq) + H2(g)
Overall: 4K(s) + H2SO4(aq) + H2O(l) → K2SO4(aq) + 2KOH(aq) + 2H2(g)
b. Potassium reacts like sodium with concentrated H2SO4, but more vigorously.
2K(s) + 2H2SO4(l) → K2SO4(aq) + SO2(g) + 2H2O(l)
2K(s) + H2O(l) → 2KOH(aq) + H2(g)
Overall: 4K(s) + 2H2SO4(l) →K2SO4(aq) + 2KOH(aq) + SO2(g) + H2(g) + H2O(l)

3. Sodium reacts with HCl in any concentration:
2Na(s) + 2HCl(aq) → 2NaCl(aq) + H2(g)
2Na(s) + 2H2O(l) → 2NaOH(aq) + H2(g)
Overall: 2Na(s) + HCl(aq) + H2O(l) → NaCl(aq) + NaOH(aq) + H2(g)

4. Potassium reacts with HCl in any concentration:
2K(s) + 2HCl(aq) → 2KCl(aq) + H2(g)
2K(s) + 2H2O(l) → 2KOH(aq) + H2(g)
Overall: 2K(s) + HCl(aq) + H2O(l) → KCl(aq) + KOH(aq) + H2(g)

5. a. Sodium reacts with very diluted HNO3:
2Na(s) + 2HNO3(aq) → 2NaNO3(aq) + H2(g)
2Na(s) + 2H2O(l) → 2NaOH(aq) + H2(g)
Overall: 2Na(s) + HNO3(aq) + H2O(l) → NaNO3(aq) + NaOH(aq) + H2(g)
b. Sodium reacts with diluted HNO3:
3Na(s) + 4HNO3(aq) → 3NaNO3(aq) + NO(g) + 2H2O(l)
2Na(s) + 2H2O(l) → 2NaOH(aq) + H2(g)
Overall: 5Na(s) + 4HNO3(aq) → 3NaNO3(aq) + 2NaOH(aq) + NO(g) + H2(g)
c. Sodium reacts with concentrated HNO3:
Na(s) + 2HNO3(l) → NaNO3(aq) + NO2(g) + H2O(l)
2Na(s) + 2H2O(l) → 2NaOH(aq) + H2(g)
Overall: 3Na(s) + 2HNO3(l) + H2O(l) → NaNO3(aq) + 2NaOH(aq) + NO2(g) + H2(g)

6. Sodium reacts with NH3(aq):
Na(s) + OH-(aq) → NaOH(aq) + e-
P.S. NH3 will ionize in water to give OH- ion.

7. Sodium reacts with CuSO4(aq):
Na(s) + CuSO4(aq) → Na2SO4(aq) + Cu(s)
2Na(s) + 2H2O(l) → 2NaOH(aq) + H2(g)
Overall: 3Na(s) + CuSO4(aq) + 2H2O(l) → Na2SO4(aq) + 2NaOH(aq) + Cu(s) + H2(g)

8. Sodium reacts with CuCl(aq):
Na(s) + CuCl(aq) → NaCl(aq) + Cu(s)
2Na(s) + 2H2O(l) → 2NaOH(aq) + H2(g)
Overall: 3Na(s) + CuCl(aq) + 2H2O(l) → NaCl(aq) + 2NaOH(aq) + Cu(s) + H2(g)

Hope these may help~~~

1. 2Na + H2SO4 → Na2SO4 + H2
2. 2K + H2SO4 → K2SO4 +H2
3. 2Na + 2HCl → 2NaCl + H2
4. 2K + 2HCl → 2KCl +H2
5. 2Na + 2HNO3 → 2NaNO3 + H2
6. Na + OH- → NaOH
7. Na + CuSO4 → NaSO4 + Cu
8. 2Na + CuCl2 → 2NaCl + Cu