Why can't polyatomic ions ever stand alone?

13. a covalent bond between two atoms is likely to be polar if: a. one of the atoms is much more electronegative than the other. b. the two atoms are equally electronegative. c. the two atoms are of the same element. d. the bond is part of a tetrahedrally shaped molecule. e. one atom is an anion.

What is the common name for the compound shown here? enter the common name of the compound shown?

Write a balanced equation showing the formation of copper (ii) nitrite from its elements