sentences: calcium carbonate reacting with acid produces carbon dioxide
docs: calcium_carbonate is salt. calcium_carbonate is carbonate. calcium_carbonate is inorganic_compound. calcium_carbonate is ionic_compound. ammonium_carbonate is chemical_compound. lead_ii_carbonate is ionic_compound. lead_carbonate is chemical_compound. calcium_carbonate is chemical_compound. hydrogen_carbonate is acid. calcite is calcium_carbonate.