A chemist adds 3.0 g sodium nitrate to 1.0 L water and stirs. The resulting solution is clear and colorless. He adds another 1.0 g sodium nitrate and stirs. The solution remains clear and colorless. What was true of the original solution he made?

Gymnast always perform on padded mats. how does the mats protect the gymnast

Helium decays to form lithium. which equation correctly describes this decay?

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 .