Question

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what mistake did carl make?

A) He did not multiply with calcium atoms by the subscript 2.
B) He did not add the coefficient 4 to the chlorine and oxygen atoms.
C) He did not add the subscript 2 to the calcium atoms.
D) He did not multiply the chlorine and oxygen atoms by the coefficient 4.

(pls answer question with letter choice as well as explaination)​

Answer 1

D) He did not multiply the chlorine and oxygen atoms by the coefficient 4.

Step-by-step explanation:

Answer 2

D) He did not multiply the chlorine and oxygen atoms by the coefficient 4.

Step-by-step explanation:

The coefficient 4 at the beginning of the chemical formula indicates that there are four Ca(ClO3)2 molecules. Think of this as Ca(ClO3)2 × 4. This means that he had to multiply the number of atoms for each element by 4 as well, so he should've ended up with 4 total calcium atoms (which is correct), 8 total chlorine atoms, and and 24 total oxygen atoms. He did not get all these answers because he didn't multiply the chlorine and oxygen atoms by the coefficient 4.