If element x forms the oxides XO and x2o3 the oxidation numbers of element x are
a)+1 and +2<...
Chemistry, 21.05.2020 04:02 itsyagirl11076
If element x forms the oxides XO and x2o3 the oxidation numbers of element x are
a)+1 and +2
b)+2 and +3
c)+1 and +3
d)+2 and +4
Answers: 3
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There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. in the first step, calcium carbide and water react to form acetylene and calcium hydroxide: cac2 (s) + 2h2o (g) β c2h2 (g) + caoh2 (s) =Ξ΄hβ414.kj in the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6c2h2 (g) + 3co2 (g) + 4h2o (g) β 5ch2chco2h (g) =Ξ΄h132.kj calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide from these reactions. round your answer to the nearest kj .
Answers: 3
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