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Answer:
Calcium carbonate reacts with hydrochloric acid to form carbon dioxide gas. 2HCl (aq) + CaCO 3(s) CaCl 2 (aq) + CO 2(g) + H 2 O (l).
Chemical properties of an atom are based upon the arrangement of valence electrons (electrons which can be gained, lost, or shared).
Explanation:
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