Write the reaction equations: Sodium – Sodium hydroxide – Sodium sulfide – Sodium chloride
| September 24, 2021 | education
Write the reaction equations: Sodium – Sodium hydroxide – Sodium sulfide – Sodium chloride – Sodium sulfate – Barium sulfate
1) 2Na + 2H2O → 2NaOH + H2 ↑ (substitution reaction; sodium, water, sodium hydroxide, hydrogen);
2) 2NaOH + H2S → Na2S + 2H2O (exchange reaction; sodium hydroxide, hydrogen sulfide, sodium sulfide, water);
3) Na2S + CaCl2 → 2NaCl + CaS (exchange reaction; sodium sulfide, calcium chloride, sodium chloride, calcium sulfide);
4) 2NaCl + CaSO4 → Na2SO4 + CaCl2 (exchange reaction; sodium chloride, calcium sulfate, sodium sulfate, calcium chloride);
5) Na2SO4 + BaCl2 → BaSO4 + 2NaCl (exchange reaction; sodium sulfate, barium chloride, barium sulfate, sodium chloride).
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