Chemistry, 06.11.2020 20:50, broyochey1

What mistake did Carl make? He did not multiply the calcium atoms by the subscript 2.
He did not add the coefficient 4 to the chlorine and oxygen atoms.
He did not add the subscript 2 to the calcium atoms.
He did not multiply the chlorine and oxygen atoms by the coefficient 4.

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What mistake did Carl make? He did not multiply the calcium atoms by the subscript 2.
He did...