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Calcium chloride and sodium phosphate react according to the following balanced chemical equation: 3CaCl2+2Na3PO4Ca3(PO4)2+6NaCl If 507.5g of CaCl2 react with 507.5g of Na3PO4, what mass (in grams) of excess reactant will remain once the reaction is complete? Question 17 3 pts If an experiment is expected to produce 84.6g of product, but experimentally only gives 78.9g, what is the percent yield of this reaction? Report your answer as just a number (do not include a % sign)