07-06-2018, 06:39 AM
You should try to study these formulas because they are not to difficult. Aluminum is a metal. So... you should first know that it is an ionic bond. Ionic bonds do not have prefixes, so you don't have to worry about adding them. Phosphate is a polyatomic ion. That means it has it's own "special formula." (Which you should study!) So. . . It should look like this ----------> Al PO4 Btw the 4 is below the O, not beside it.