State whether homgenous mixture or heterogenoues mixture soda water

The wave shown on the electromagnetic spectrum disturb the medium it passes through a)different frequency. b)the same frequency .

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

If you add 5.00 ml of 0.100 m sodium hydroxide to 50.0 ml of acetate buffer that is 0.100 m in both acetic acid and sodium acetate, what is the ph of the resulting solution? acetic acid: ka = 1.8. x 10-5