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6. What is the charge of an Ammonium Ion (NH4)?

  • 1-
  • 1+
  • 2-
  • 2+

7. What is the charge of an Hydroxide Ion (OH)?

  • 2+
  • 2-
  • 1-
  • 1+

8. What is the charge of a Phosphate Ion (PO4)?

  • 1-
  • 1+
  • 3-
  • 2+

9. What is the charge of a Sulfite Ion (SO3)?

  • 2-
  • 1+
  • 1-
  • 2+