g What is the mass ratio for CaCl2 if a sample analyzed to be 36.1 grams calcium and 63.9 grams chlorine

Explanation:

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In this case, since the mass ratio here can be computed as:

For each element forming the compound we obtain:

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the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

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