1. How much heat is absorbed by 60 g of copper (c=385 J/kg K) when it is heated from 20°C to 80° C?
2. A 38 kg block of lead (c=130 J/kg K) is heated from -26 °C to 180° C. How much heat is absorbed?
3. A 0.5 kg sample of water is in a calorimeter at 15 °C. 0.04 kg of zinc (c=388 J/kg K) is added. What is the final temperature? Initial temperature of the zinc is 300 °C.
4. 100 g of brass (c=376 J/kg K) at 90° C is added to 200 g of water at 20° C. What is the final temperature?
5. 100 g of aluminum at 100° C is added to 100 g of water at 10° C. What is the specific heat of aluminum if the final temperature of the mixture is 25° C?
6. 100 g of ice at 0° C is heated until it becomes water at 20° C. How much heat is added?
7. 100 g of water at 0° C is frozen, becoming ice (c=2060 J/kg K) at -20° C. How much heat was removed?

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