Demonstrate a net force of 50 N to the left. Use three different combinations of people to get the same net force. How many people did you place on each side?

Some liquids can be distilled, but only at temperatures that are so high that it is impractical, or so high the compound decomposes. explain why distillation such compounds at significantly less than atmospheric pressure (some degree of vacuum) would solve this problem.

Find the mass, in grams, of 5.00*10^23 molecules of f2

Which is the solubility product expression for caf2(s)?  [ca2+]/[f–]2  [ca2+][f2–]  [ca]+[f]2  [ca2+][f–]2