Chemistry, 02.04.2020 03:22 csteward5978
77.In the early days of automobiles, illumination at night was provided by burning acetylene, C2H2. Though no longer used as auto headlamps, acetylene is still used as a source of light by some cave explorers. The acetylene is(was) prepared in the lamp by the reaction of water with calcium carbide, CaC2:CaC2(s)+2H2O(l)⟶Ca(OH)2(s)+C2H 2(g). Calculate the standard enthalpy of the reaction. TheΔHf°of CaC2is −15.14 kcal/mol.
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Chemistry, 21.06.2019 18:00
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The identities of substances are the same before and after which type of change
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Chemistry, 22.06.2019 18:30
The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false
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77.In the early days of automobiles, illumination at night was provided by burning acetylene, C2H2....
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