A chemist will prepare a stock solution of HCl so that 27.15 mL stock samples will produce a solution with a concentration of 0.357 M after 741.25 mL of water is added. What should the molarity of the stock solution be?

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

Electric charge is what ? a. kinetic energy b. radiation c. discovery d. electricity

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.