PLEASE HURRY ITS TIMED!!

An aqueous solution is made from a molecular compound rather than from an ionic compound. If some ions are present
solution, which best describes the solute?
a weak electrolyte
a nonelectrolyte
a strong electrolyte
a covalent electrolyte

What type of reaction is shown below? check all that apply. 2h2o2 → 2h2o + o2 synthesis decomposition combustion

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 .

40dm3 of gas at 760 torr are heated from 5°c to 50°c what is the new volume