Name this formula

Question

What is the chemical formula for the compound formed between scandium (III) and the borate ion?

Answer 1

A key item you need to know to do this problem is that borate is BO₃^3-

Once you know that, it's easy. We are told the Scandium is 3+, because it says scandium (III), so the cation and anion have the same charges so the formula is just ScBO₃

The name of ionic compounds is:

metal + polyatomic anion

In this case, that is:

scandium borate.