Quick I’m timed Which phrase describes air density?
increases as altitude increases
O equals mass divided by volume
pushes molecules in one direction
exerts less pressure as it increases

- 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).

(b) which contains higher levels of vitamin b, oranges or spinach?

explanation:

you can eliminate a, c, and d because they are questions based on opinions.