Chemistry, 11.02.2021 22:30 cfnewton09
29. A group of students used this diagram to classify three organisms into different kingdoms. Multicellular Cell wall No cell wall Chloroplasts No chloroplasts No chloroplasts 1 2 3 Which table correctly identifies the three kingdoms? ​
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Which type of reaction always has an element and a compound as reactants
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At a temperature of 393 k, the temperature of a sample of nitrogen is 1.07 atm what will the pressure be at a temperature of 478 k
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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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