5) Samantha added 125 mL of water to 100mL of a stock solution to make
225 mL of a 0.75 M solution. What was the molarity of the original stock
solution?
O 1.7 M.
O 0.3 M
O 0.75 M
O 3M

An electron moved from a lower energy level to a higher energy level. what most likely happened during the transition? a random amount of light was released. a fixed amount of energy was absorbed. a fixed amount of energy was released. a random amount of light was absorbed.