The purpose of a titration, such as that done in the hard water lab, is to
A. change the pH of a solution
B. cause a precipitate to form
C. determine the concentration of a unknown chemical in a
solution

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

Select all that apply. a beta particle: is electromagnetic energy is an electron has zero charge is emitted from the nucleus has a +2 charge has a -1 charge

Compare the equilibrium constants for the systems shown in the table. which favors products the most? which favors products the least? rank these systems in order from most to least in terms of favoring products rather than reactants. d > b > a > c c > a > b > d b > c > d > a a > d > c > b