Question: Solve this correctly step by step A sample of pure calcium fluoride with a mass of 15.0 g contains 7.70 g of calcium. How much

Solve this correctly step by step

A sample of pure calcium fluoride with a mass of 15.0 g contains 7.70 g of calcium. How much calcium is contained in 40.0 g of calcium fluoride? O 20.5 g O 7.70 g O 2.27 g O 15.0 g

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