Chemistry, 01.07.2019 00:00 adejumoayobami1

A, hypothesis, theory) is scientific knowledge established through direct observation and remains constant. scientific knowledge can change when scientists conduct experiment, generate hypothesis, hold different views).

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Chemistry, 22.06.2019 20:00, 20calzoy

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 .

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A, hypothesis, theory) is scientific knowledge established through direct observation and remains co...