if i describe the movement of an object as 25 m/s west. What am i using to describe the movement, speed , velocity or movement

the answer is

- aluminum and copper chloride.

- the chloride ion to separate the aluminum from the oxygen so that the aluminum can react with the copper ions (and the water molecules).

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)

it is the most commonly accepted one