Answer
a) Sulfate
b) Carbonate
c) Hydrogen Sulfite or Bisulfite
d) Nitrate
Work Step by Step
$a) SO_{4}^{2-}$= Sulfate
$b) CO_{3}^{2-}$= Carbonate
$c) HSO_{3}^{-}$= Hydrogen Sulfite or Bisulfite
$d) NO_{2}^{-}$= Nitrate
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.