Pure soaps are crystalline solids that do not form liquid crystals, though a 50/50 mixture of some soaps and water will show liquid crystal properties. Why?

Sugar is dissolved in water. which is the solute? sugar neither both water

8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.

At 20°c, a sample of h2o liquid and a sample of co2 gas each have the same average kinetic energy. why is one a liquid and the other a gas at this temperature?