Is po4^-3 polar, non-polar, or ionic?

Aphysical change is one that you can put in and remove like a ham sandwich. the stuff you put in there can be changem its not permanet. a chemical change is on that can't be change thats permanet. like when you make a cake and bake it. you can't get those ingredients back.

0.50 hope this  

Answer is (d)a brainliest would be appreciated