A chemist prepares a solution of iron ( II ) bromide by measuring out 59.5 mg of FeBr2 into a 100mL volumetric flask and filling to the mark with distilled water.

Calculate the molarity of Br anions in the chemist's solution.

Be sure your answer is rounded to the correct number of significant digits and answer must be in mol/L

Which of the following is a testable hypothesis? a. if i brush my teeth, i will get fewer cavities than if i don't brush my teeth. b. green toothpaste tastes better than blue toothpaste or red toothpaste. c. smart, careful, healthy people always brush their teeth. d. it's wrong to not brush your teeth before you have an important conversation with someone.

List four observations that indicate that a chemical reaction may be taking place

What is the solubility of substance?