1) 1 molecules
2) 2 oxygen atoms
3)2 moles of Al2O3 are formed
4)4:3
Answer:
D.
Explanation:
I just got it right in the test :)
1. they work ways faster
2. you don't need 100 people making the same thing at once
3. its a better chance of not getting an injury
The molar mass of the hydrate is 278.06
The molar mass of the anhydrous salt is 151.92
The molar mass of water in the hydrate is 126.14
