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An unknown metal with a mass of 100 g was heated to 100 C and placed into 30.0 g of water that had a temperature of 20.2 C. The final temperature of both substances was 35.2 C. What is the specific heat of the metal?

A.) -0.291 J/g. C
B.) -0.130 J/g. C
C.) 0.291 J/g. C
D.) 0.130 J/g. C

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