When metal carbonates and hydrogencarbonates react with acids, they produce a corresponding salt, carbon dioxide gas, and water.
What products are produced when metal carbonates and hydrogencarbonates react with acids?
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When metal carbonates react with acids, carbon dioxide gas, water, and a salt are produced. The general equation is:
Metal carbonate + Acid → Salt + Water + Carbon dioxide
For example, when calcium carbonate reacts with hydrochloric acid, calcium chloride, water, and carbon dioxide are formed:
CaCO₃(s) + 2HCl(aq) → CaCl₂(aq) + H₂O(l) + CO₂(g)
Similarly, metal hydrogencarbonates react similarly, producing carbon dioxide, water, and a salt. The reaction of sodium hydrogencarbonate with hydrochloric acid yields sodium chloride, water, and carbon dioxide:
NaHCO₃(s) + HCl(aq) → NaCl(aq) + H₂O(l) + CO₂(g)