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Thermos contains 156 cm3 of coffee at 90.5 C. To cool the coffee, you drop two 10.5-g ice cubes into the thermos. The ice cubes

Thermos contains 156 cm3 of coffee at 90.5 C. To cool the coffee, you drop two 10.5-g ice cubes into the thermos. The ice cubes are ally at 0 C and melt completely. What is the final temperature of the coffee in degrees Celsius? Treat the coffee as if it were water.

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