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(a) Write chemical equations.(i) When carbon dioxide gas is passed through lime water.(ii) When excess of carbon dioxide gas is passed through lime water.(b) List two natural forms of calcium carbonate. |
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Answer» (a) (i) Ca(OH)2+CO2 → CaCO3+H2O (ii) Ca(OH)2(aq) + CO2(g) → CaCO3(s) + H2O(l) CaCO3(s) + H2O(l)+CO2(g) → Ca(HCO3)2(aq) (b) Aragonite and calcite |
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