Lime is a term that includes calcium oxide (cao, also called quicklime) and calcium hydroxide (ca(oh)2 also called slaked lime). it is used in the steel industry to remove acidic impurities, in air-pollution control to remove acidic oxides such as so2, and in water treatment. slaked lime is produced by treating quicklime with water: cao(s) + h2o(l) → ca(oh)2(s)δh o = −65.2 kj/mol given the standard enthalpies of formation of cao and h2o are −635.6 kj/mol and −285.8 kj/mol, respectively, calculate the standard enthalpy of formation of ca(oh)2.
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Chemistry, 22.06.2019 02:30, carsonjohnsonn
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Chemistry, 22.06.2019 08:00, flakko1899
An electron moved from shell n = 2 to shell n = 1. what most likely happened during the transition? a fraction of a photon was added. a photon of energy was absorbed. a fraction of a photon was removed. a photon of energy was released.
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Chemistry, 22.06.2019 15:30, dylannhandy
Using the first volume and temperature reading on the table as v1 and t1, solve for the unknown values in the table below. remember to use the rules of significant figures when entering your numeric response.
Answers: 2
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Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?
Answers: 3
Lime is a term that includes calcium oxide (cao, also called quicklime) and calcium hydroxide (ca(oh...
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