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Chemistry 18 Online
OpenStudy (anonymous):

the chemical formula for antacid, calcium carbonate, is CaCO3. so for each molecule of calcium carbonate there are 3 atoms of what chooses are (a)Ca (calcium (b) c(carbon) (c) o (oxygen) (d) all of the above

OpenStudy (anonymous):

the Oxygen because the 3 is on the oxygen

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