A voltaic cell has an iron rod in 0.35 M iron(III) chloride solution for the cathode and a zinc rod in 0.23 M zinc sulfate solution for the anode. The half-cells are connected by a salt bridge. Choose the correct notation for this cell.

If 1.63 times 10 negative 4 of helium dissolves in 100.0g of water, what is the concentration in parts per million

Joseph has hypothesized that sound travels in waves. if he were following the scientific method, what should he do next? a. ask a question. b. test the hypothesis. c. study the results. d. tell other scientists about his hypothesis.

200. ml of 3.00 m nacl solution is diluted to a final volume of 500. ml. what is the molarity of the final solution?