A certain substance with a molar mass of 43 g/mol has a heat of fusion of 48 cal/g. How many calories are needed to melt 7.2 kg of the substance?

What overall charge must all compounds have

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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.