Chemistry, 06.01.2021 03:30 claudiagallegos26
5. Which of the following is not an empirical formula?
O CNgHs
O sb, S3
O BeCr207
O CgHs0
Answers: 3
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How many protons, electrons, and neutrons are in each of the following isotopes? a. zirconium-90 b. palladium-108 c. bromine-81 d. antimony-123
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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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How many grams of sodium chloride are in 250ml of a 2.5m naci solution
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5. Which of the following is not an empirical formula?
O CNgHs
O sb, S3
O BeCr207
...
O sb, S3
O BeCr207
...
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