1. LEARN THOSE FORMULAE! Cut out the cards and use them as a board game or play as a slide show!

2. Li + PO 4 3- Cl - Mg 2+ Al 3+ Na + Fe 3+ Zn 2+ O 2- S 2- H+H+ H+H+ K+K+ K+K+ Ag + NH 4 + F-F- F-F- Br - I-I- I-I- HCO 3 - OH - NO 3 - MnO 4 - Ca 2+ Cu 2+ Fe 2+ Cr 2 O 7 2- SO 4 2- CO 3 2- Ba 2+ Pb 2+

3. Lithium Chloride Click for hint, click again for massive hint, click again for answer! Li + Cl - Li + Cl - LiCl

4. Iron (III) oxide Click for hint, click again for massive hint, click again for answer! Fe 2 O 3 O 2- Fe 3+

5. Copper sulfate Click for hint, click again for massive hint, click again for answer! CuSO 4 Cu 2+ SO 4 2- Cu 2+ SO 4 2-

6. Calcium chloride Click for hint, click again for massive hint, click again for answer! CaCl 2 Cl - Ca 2+ Cl - Ca 2+ Cl -

7. Zinc hydroxide Click for hint, click again for massive hint, click again for answer! Zn(OH) 2 Zn 2+ OH - Zn 2+ OH -

8. Lithium sulfate Click for hint, click again for massive hint, click again for answer! Li 2 SO 4 Li + SO 4 2- Li + SO 4 2- Li +

9. Lead (II) phosphate Click for hint, click again for massive hint, click again for answer! Pb 3 (PO 4 ) 2 PO 4 3- Pb 2+ PO 4 3- Pb 2+ PO 4 3-

10. Silver oxide Click for hint, click again for massive hint, click again for answer! Ag 2 O O 2- Ag + O 2- Ag +

11. Magnesium hydrogen carbonate Click for hint, click again for massive hint, click again for answer! Mg(HCO 3 ) 2 Mg 2+ HCO 3 - Mg 2+ HCO 3 -

12. Calcium nitrate Click for hint, click again for massive hint, click again for answer! Ca(NO 3 ) 2 NO 3 - Ca 2+ NO 3 - Ca 2+ NO 3 -

13. Sodium carbonate Click for hint, click again for massive hint, click again for answer! Na 2 CO 3 Na + CO 3 2- Na + CO 3 2- Na +

14. Barium iodide Click for hint, click again for massive hint, click again for answer! BaI 2 I-I- I-I- Ba 2+ I-I- I-I- I-I- I-I-

15. Magnesium chloride Click for hint, click again for massive hint, click again for answer! MgCl 2 Mg 2+ Cl - Mg 2+ Cl -

16. Potassium sulfide Click for hint, click again for massive hint, click again for answer! K2SK2S S 2- K+K+ K+K+ K+K+ K+K+ K+K+ K+K+

17. Potassium phosphate Click for hint, click again for massive hint, click again for answer! K 3 PO 4 K+K+ K+K+ K+K+ K+K+ K+K+ K+K+ PO 4 3- K+K+ K+K+

18. Zinc nitrate Click for hint, click again for massive hint, click again for answer! Zn(NO 3 ) 2 Zn 2+ NO 3 - Zn 2+ NO 3 -

19. Aluminium hydroxide Click for hint, click again for massive hint, click again for answer! Al(OH) 3 Al 3+ OH - Al 3+ OH -

20. Zinc sulfide Click for hint, click again for massive hint, click again for answer! ZnS Zn 2+ S 2- Zn 2+ S 2-

21. Calcium carbonate Click for hint, click again for massive hint, click again for answer! CaCO 3 Ca 2+ CO 3 2-

22. Potassium manganate Click for hint, click again for massive hint, click again for answer! KMnO 4 K+K+ K+K+ MnO 4 - K+K+ K+K+

23. Iron (II) nitrate Click for hint, click again for massive hint, click again for answer! Fe(NO 3 ) 2 NO 3 - Fe 2+ NO 3 - Fe 2+ NO 3 -

24. Magnesium chloride Click for hint, click again for massive hint, click again for answer! MgCl 2 Cl - Mg 2+ Cl - Mg 2+ Cl -

25. Copper oxide Click for hint, click again for massive hint, click again for answer! CuO Cu 2+ O 2-

26. Calcium oxide Click for hint, click again for massive hint, click again for answer! CaO Ca 2+ O 2-

27. Magnesium carbonate Click for hint, click again for massive hint, click again for answer! MgCO 3 Mg 2+ CO 3 2-

28. Copper sulfate Click for hint, click again for massive hint, click again for answer! CuSO 4 Cu 2+ SO 4 2- Cu 2+ SO 4 2-

29. Sodium hydroxide Click for hint, click again for massive hint, click again for answer! NaOH Na + OH -

30. Calcium hydroxide Click for hint, click again for massive hint, click again for answer! Ca(OH) 2 Ca 2+ OH -

31. Copper nitrate Click for hint, click again for massive hint, click again for answer! Cu(NO 3 ) 2 Cu 2+ NO 3 -

32. Iron (III) nitrate Click for hint, click again for massive hint, click again for answer! Fe(NO 3 ) 3 Fe 3+ NO 3 - Fe 3+ NO 3 -

33. Sodium carbonate Click for hint, click again for massive hint, click again for answer! Na 2 CO 3 Na + CO 3 2-

34. Magnesium oxide Click for hint, click again for massive hint, click again for answer! MgO Mg 2+ O 2-

35. Sodium oxide Click for hint, click again for massive hint, click again for answer! Na 2 O Na + O 2-

36. Ammonium chloride Click for hint, click again for massive hint, click again for answer! NH 4 Cl Cl - NH 4 + Cl - NH 4 +

37. Copper carbonate Click for hint, click again for massive hint, click again for answer! CuCO 3 Cu 2+ CO 3 2-

38. Aluminium oxide Click for hint, click again for massive hint, click again for answer! Al 2 O 3 Al 3+ O 2- Al 3+

39. Ammonium nitrate Click for hint, click again for massive hint, click again for answer! NH 4 NO 3 NH 4 + NO 3 - NH 4 + NO 3 -

40. Iron (II) hydroxide Click for hint, click again for massive hint, click again for answer! Fe(OH) 2 OH - Fe 2+ OH - Fe 2+ OH -

41. Sodium sulfide Click for hint, click again for massive hint, click again for answer! Na 2 S S 2- Na + S 2- Na +