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12. A student wants to determine the identity of an unknown metal. The students heat the 25.0 g chunk of metal to 122.8 °C, then drops it into 50.0g of water at 34.7 °C. After waiting, the final temperature of the water is 38.5 °C. (Use 4.184 J/g • °C as the specific heat of water.) From the following metals, what is the best guess for the identity of the unknown metal? A. Aluminum (specific heat capacity of 0.921 J/g • °C) B. Copper (specific heat capacity of 0.377 J/g • °C) C. Stainless Steel (specific heat capacity of 0.502 J/g • °C)