What happened in chernobyl, ukraine, in 1986? a. the explosion of a nuclear reactor killed 30 people. b. deadly gases from a pesticide factory killed 20,000 people. c. the dam holding back a toxic waste retention pond failed, flooding 10,000 homes with benzene. d. uranium seeping out of a mine contaminated the water supply, causing radioactive poisoning in 30% of the city’s residents.

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 .