Measurements show that unknown compound X has the following composition: element mass %
carbon 62.6%
hydrogen 4.20%
oxygen 33.4%
Write the empirical chemical formula of X.

- 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).

false

because it does not have the potential to be entirely used up

answer by yourhope:

how do models compare to real-world objects?

d. most models represent a real-world object in a simpler way.

: )

the answer is b & c i believe : )