A rub-
ber ball that sits motionless near the edge
of a tall bookshelf has no kinetic energy...
Chemistry, 15.12.2021 04:00 momoney9957
A rub-
ber ball that sits motionless near the edge
of a tall bookshelf has no kinetic energy.
However, it does have mechanical energy.
Explain why this is possible.
help me plz
Answers: 2
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Which of the following signs of a chemical reaction are observed in the reaction of potassium with water? precipitate formed temperature change smell produced gas produced color change
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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) → c2h2 (g) + caoh2 (s) =δh−414.kj in the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6c2h2 (g) + 3co2 (g) + 4h2o (g) → 5ch2chco2h (g) =δh132.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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