What characterizes an Arrhenius acid-base reaction? O A. It forms a conjugate pair.
B. It forms a buffer in water.
O C. It forms hydrogen gas.
O D. It forms a salt and water.

0.09 moles of sodium sulfate in 12 ml of solution

At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver

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 .