Question #ab78d

1 Answer
Ben Mai
Nov 13, 2014

The formula would be: CaSO4.

Since SO4 2- is a polyatomic ion with a 2- charge and calcium (Ca) has a charge of 2+ the formula would balance out. In this case to write the equation you would write the metal first, the the polyatomic ion second, this is how I got CaSO4.

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