1.0 g of hydrogen is heated to combine with 80.0 g of bromine and 1.0 g of calcium (valency =2) combines with 4.0 g of bromine.

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1.0 g of hydrogen is heated to combine with 80.0 g of bromine and 1.0 g of calcium (valency =2) combines with 4.0 g of bromine.

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