What is the color of the precipitate formed when CaCl2 reacts with H2SO4?  When CaCl2 reacts with potassium chromate?

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When determining the color of a precipitate, the first thing we need to know is what the precipitate is.  We need to look at the ions present in the reactants and see if there is a combination of ions that will result in the formation of an insoluble product.

Let's first look at CaCl2 +...

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