How much heat is released when 30g of water at 96 C cools to 25 C

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How is energy related to the change of state represented by the model? atoms gain energy as a solid changes to a liquid. atoms gain energy as a solid changes to a gas. atoms lose energy as a solid changes to a liquid. atoms lose energy as a solid changes to a gas.

Give one example of a pure (exact) number and of an estimated (measured) number.