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1. A student drops an ice cube into an insulated flask full of water and waits...

1. A student drops an ice cube into an insulated flask full of water and waits for the ice cube to completely melt. The ice cube initially has a mass of 120 g and a temperature of 0°C. The water (before the ice cube is added) has a mass of 2.00 kg and an initial temperature of 75°C. What is the final temperature (in °C) of the mixture? (Assume no energy is lost to the walls of the flask, or to the environment.)

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