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We have 2.0 kg of ice in a bucket. The temperature of the ice and bucket...

We have 2.0 kg of ice in a bucket. The temperature of the ice and bucket is -20 degrees Celcius. The heat capacity of the bucket is 2400 J/K. How much water at temperature 20 degrees Celcius must we add to the bucket for the equilibrium temperature to become 5.0 degrees Celcius?

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