Write the reaction equations: a) sodium → sodium hydroxide → sodium nitrate b) potassium

Write the reaction equations: a) sodium → sodium hydroxide → sodium nitrate b) potassium → potassium hydroxide → potassium carbonate c) copper → copper oxide (2) → copper chloride (2) → copper hydroxide (2) → copper oxide (2) g ) calcium → calcium oxide → calcium hydroxide → calcium chloride e) zinc → zinc oxide → zinc nitrate → zinc hydroxide → zinc sulfate f) barium → barium hydroxide → barium acetate

A) 1) 2Na + 2H2O → 2NaOH + H2 ↑ (substitution reaction);

2) NaOH + HNO3 → NaNO3 + H2O (exchange reaction).

B) 1) 2K + 2H2O → 2KOH + H2 ↑ (substitution reaction);

2) 2KOH + H2CO3 → K2CO3 + 2H2O (exchange reaction).

B) 1) 2Cu + O2 → 2CuO (compound reaction);

2) CuO + HCl → CuCl2 + H2O (exchange reaction);

3) СuCl2 + 2KOH → Cu (OH) 2 ↓ + 2KCl (exchange reaction);

4) Cu (OH) 2 ↓ → CuO + H2O (decomposition reaction).

D) 1) 2Ca + O2 → 2CaO;

2) CaO + H2O → Ca (OH) 2 ↓;

3) Ca (OH) 2 ↓ + 2HCl → CaCl2 + 2H2O.

E) 1) 2Zn + O2 → 2ZnO (compound reaction);

2) ZnO + 2HNO3 → Zn (NO3) 2 + H2O (exchange reaction);

3) Zn (NO3) 2 + 2NaOH → Zn (OH) 2 + 2NaNO3 (exchange reaction);

4) Zn (OH) 2 + H2SO4 → ZnSO4 + 2H2O (exchange reaction).

E) 1) Ba + 2H2O → Ba (OH) 2 + H2 (substitution reaction);

2) Ba (OH) 2 + 2CH3COOH → Ba (CH3COO) 2 + 2H2O (exchange reaction).