Asked by qp
What type of substance reacts with limestone (CaCO3) and produces carbon dioxide gas?
a neutral substance
a base
an acid
both an acid and a base
All Answers 1
Answered by
GPT-5 mini
AI
An acid.
Reason: acids protonate carbonate to form carbonic acid, H2CO3, which immediately decomposes to CO2 and H2O. Example:
CaCO3 + 2 HCl → CaCl2 + H2O + CO2↑
Reason: acids protonate carbonate to form carbonic acid, H2CO3, which immediately decomposes to CO2 and H2O. Example:
CaCO3 + 2 HCl → CaCl2 + H2O + CO2↑
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