Chemistry, 20.09.2019 07:30, gretchcampbell

Asample of gold has a mass of 38.6 grams and a volume of 2 cm3. what is the density of gold?

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Chemistry, 22.06.2019 09:00, tbiles99

What type of energy do chemical bonds have? what type of energy is it converted to during chemical reactions? question 15 options: chemical bonds have kinetic energy, which is converted to potential energy during chemical reactions. chemical bonds have electric energy, which is converted to potential energy during chemical reactions. chemical bonds have heat energy, which is converted to kinetic energy during chemical reactions. chemical bonds have potential energy, which is converted to heat energy during chemical reactions.

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Chemistry, 22.06.2019 15:00, alanmarcus22

What does the symbol (–hfus) indicate in a phase change?

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Chemistry, 22.06.2019 23:00, lufung8627

Consider the reaction: 2al(s) + fe2o3(s) → al2o3(s) + 2fe(s) the δhf for fe2o3(s) = -824.3 kj/mole. the δhf for al2o3(s) = -1675.7 kj/mole. finish the equation. δhrxn = [(1)( kj/mole) + (2)( kj/mole)] - [(1)( kj/mole) + (2) ( kj/mole)]