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7. We heat 50.0 g of an unknown substance by adding 205 cal, and its temperature rises by 7.0C. Identify the substance. a. water b.

7. We heat 50.0 g of an unknown substance by adding 205 cal, and its temperature rises by 7.0C. Identify the substance. a. water b. ethanol c. benzene d. acetic acid

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