Question

What does the 2 mean in the formula 5Mg3(PO4)2?

A. There are two elements in magnesium phosphate.
B. There are two molecules of magnesium phosphate.
C. There are two magnesium ions in a molecule of magnesium phosphate.
D. There are two phosphate ions in a molecule of magnesium phosphate.

Answer 1

D. There are two phosphate ions in a molecule of magnesium phosphate

Answer 2

D. There are two phosphate ions in a molecule of magnesium phosphate. Hope this helps!! :-)