Chemistry, 12.10.2019 01:10 1119diamondlord

What are some challenges scientists face when using models?

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Chemistry, 22.06.2019 02:20, nakeytrag

6. what does the symbol ah stand for? o one calorie given off by a reaction the specific heat of a substance the heat capacity of a substance the heat of reaction for a chemical reaction

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Chemistry, 22.06.2019 12:00, sugar75

An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?

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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)]

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Chemistry, 23.06.2019 02:30, kieante01

Which statement best describes the liquid state of matter? a. it has definite shape but indefinite volume. b. it has definite shape and definite volume. c. it has indefinite shape and indefinite volume. d. it has indefinite shape but definite volume.