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High-purity benzoic acid (c6h5cooh; δhrxn for combustion = −3227 kj/mol) is used as a standard for calibrating bomb calorimeters. a 1.221-g sample burns in a calorimeter (heat capacity = 1365 j/°c) that contains exactly 1.430 kg of water. what temperature change is observed?
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Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal. b. he is determining chemical properties that are sufficient to identify the metal. c. he is determining physical properties that are insufficient to identify the metal. d. he is determining chemical properties that are insufficient to identify the metal.
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High-purity benzoic acid (c6h5cooh; δhrxn for combustion = −3227 kj/mol) is used as a standard for...
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