C is the element symbol for which element?
a. Carbon
b. Cadmium
c. Celenium
d. Chlorine

What volume of a 2.00 m stock solution of naoh is needed to prepare 150. ml of 0.40 m solution?

In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al oxidizing agent = reducing agent =

Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.