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Three molecules of calcium carbonate (CaCO3) has nine(9) oxygens.

Think of 3CaCO3 = CaCO3 + CaCO3 + CaCO3.

Each molecule of CaCO3 has ;-

1 atoms of calcium (Ca)

1 atom of carbon (C)

3 atoms of oxygen (O3 = O + O + O).

So if one molecules of CaCO3 has 3 oxygens, then

three molecules of CaCO3 has 3 x 3 = 9 oxygens. The answer!!!!!

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lenpollock

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1y ago

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