Make equations along the chain K = K2O = KOH = K2CO3 = H2CO3 = CO2
| February 10, 2021 | education
4K + O2 → 2K2O (potassium, oxygen, potassium oxide; compound reaction);
K2O + H2O → 2KOH (potassium oxide, water, potassium hydroxide; compound reaction);
2KOH + CO2 ↑ → K2CO3 + H2O (potassium hydroxide, carbon dioxide, potassium carbonate, water; exchange reaction);
K2CO3 + 2HCl → 2KCl + H2CO3 (potassium carbonate, hydrochloric acid, potassium chloride, carbonic acid; exchange reaction);
H2CO3 → H2O + CO2 ↑ (carbonic acid, water, carbon dioxide; decomposition reaction).
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