A piece of iron (Cp = 0.450 J / (gi°C)) that has a mass of 21.5 g and an initial temperature of 100.0°C is submerged in X g of water (Cp = 4.184 J / (gi°C)) at 20.0°C. The temperature of the system (iron and water) changes to 21.4°C. What is the value of X? A. 041 g. B. 80 g. C. 132 g. D. 574 g
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