(1) CaCO3 is the correct answer.
The type of bond formed between Ca2+ and CO3 2- is ionic, and the type of bond formed between C and O is covalent.
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Flammable liquid,gasoline, oil, and etc
Answer:
All these theories can be grouped into the following two general classes. Formation of the solar system quickly and violently: Old planetesimal hypotheses, Nebular hypotheses, new planetesimal hypotheses and tidal hypotheses are some examples of it.
Explanation: