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6. What is the charge for Oxide?

  • O 2-
  • O +
  • O -

7. What is the charge for SO4?

  • SO4 2-
  • SO4 -
  • SO4 +

8. What is the charge for Lithium?

  • Li +
  • Li -
  • Li 2+

9. What is the charge for Potassium?

  • K +
  • K 2+
  • K 3+

10. What is the charge for Ammonium?

  • NH4 +
  • NH4 -
  • NH4 2+

11. What is the charge for Iron (II)?

  • Fe +
  • Fe 2+
  • Fe 2-

12. What is the charge for Calcium?

  • Ca -
  • Ca 2+
  • Ca +

13. What is the charge for Strontium?

  • Sr +
  • Sr 2+
  • Sr 2-

14. What is the charge for Hydroxide?

  • OH 2-
  • OH -
  • OH +

15. What is the charge for Sulphur?

  • S 2-
  • S +
  • S -

16. What is the charge for Copper (I)?

  • Cu +
  • Cu -
  • Cu 2+

17. DO YOU KNOW THESE?

  • NO
  • YES

18. What is the charge for Flourine?

  • F -
  • F 2-
  • F +

19. What is the charge for Copper (II)?

  • Cu 2+
  • Cu +
  • Cu 2-

20. What is the charge for Chlorine?

  • Cl 2-
  • Cl -
  • Ch -