Which of the following is true regarding chemical and nuclear reactions? a. both processes are always affected by changes in temperature, pressures, and catalysts. b. both processes are associated with large changes in energy. c. both processes involve breaking bonds. d. both processes involve subatomic particles.

What is the approximate vapor pressure when the gas condenses at 70 degrees celsius

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 .

What are the two major rules associated with polarity