Write the formula for the polyatomic ion in NaNO 3.

Write the formula for the polyatomic ion in Ag2CO3.
Write the formula for the polyatomic ion in NaHCO3.
Write the formula for the polyatomic ion in BaSO4

2 answers

NO3^- is nitrate ion.
CO3^2- is carbonate ion.
HCO3^- is bicarbonate (or hydrogen carbonate ion.
You get the idea.
Na+HCO3