Lesson: Chapter 16 — Changes of Matter
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What products form when calcium carbonate reacts with dilute hydrochloric acid?
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CaCl2, H2O and CO2. CaCO3 + 2HCl → CaCl2 + H2O + CO2.
Hydrogen comes from a metal reacting with an acid, not from a carbonate. CaO and CO2 are what you get by heating CaCO3.
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