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Calcium oxide is an ionically bonded compound that contains equal numbers of calcium cations with a charge of +2 and oxide anions with a charge of -2.

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Calcium oxide (CaO) is an ionically bonded compound. It forms an ionic bond between the calcium cation and the oxide anion. Calcium donates two electrons to oxygen to form this bond.

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Q: Is calcium oxide a covalently bonded compound or a ionically bonded compound?
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