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Biology question?????????

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(20Ca) & (17Cl) can combine to form the salt calcium chloride.

What is the molecular formula and why do you put one element before the other?

Ex: CaCl, why is Ca first?

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  1. its CaCl2 i think. usually, its the one that takes a positive ion that is first, and the negative ion second.

    make it a good day

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