List the formulas of three soluble bromide salts and three insoluble bromide salts. Do the same exercise

Question:

List the formulas of three soluble bromide salts and three insoluble bromide salts. Do the same exercise for sulfate salts, hydroxide salts, and phosphate salts (list three soluble salts and three insoluble salts). List the formulas for six insoluble Pb2+ salts and one soluble Pb2+ salt.