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A 139.9 g piece of copper (specific heat 0.380 J/g・°C) is heated and then placed into 400.0 g of water initially at 20.7°C. The water increases in temperature to 22.2°C. What is the initial temperature (in °C) of the copper? (The specific heat of water is 4.184 J/g・°C).
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A 139.9 g piece of copper (specific heat 0.380 J/g・°C) is heated and then placed into 400.0 g of wat...
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