An experiment is designed to investigate the effects of solutes on colligative properties. Two equal volume sample are placed in a freezer. One is pure water and the other is an aqueous salt (NaCl) solution. What prediction can be made regarding the samples?
The salt solution will freeze at a lower temperature than the pure water.

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.

In 1901, thomas edison invented the nickel-iron battery. the following reaction takes place in the battery. fe(s) + 2 nio(oh)(s) + 2 h2o(l) fe(oh)2(s) + 2 ni(oh)2(aq) how many mole of fe(oh)2, is produced when 4.20 mol fe and 6.70 mol nio(oh) react?

A2-kg bowling ball is 1 meter off the ground on a post when it falls. just before it reaches the ground,its traveling 4.4 m/s. assuming that there is no air resistant, which statement is true a. the initial potential energy is less then the final kinetic energy b. the mechanical energy is not conserved c. the mechanical energy is conserved d. the initial potential energy is greater than the final kinetic energy