1. Predicting Products

2. Single Displacement Use activity series of metals
If metal C is more active than A, then it replaces less active metal A.
AB + C  CB + A
If metal F is less reactive than metal D, it cannot bump off D & reaction does not occur
DE + F  no reaction

3. Activity Series p 148
General Trends of metal activity (how well they can displace):
Lighter metals bump off heavier metals
Metals with +1 charges will bump metals with +2 charges
How to read table 4-12: the higher up a metal, the more active it is.
Not perfect trends:
Ca2+ displaces Na+

4. NaCl + F2 ---> NaF + Cl2 NaF + Cl2 ---> No reaction

5. MgCl2 + Na  KBr + Cl2  FeCl3 + Cu  Na2SO4 + Cu 

6. Double Displacement or Metathesis
Use solubility tables p134 – 135
For rxn to occur, precipitate (ppt) must form

7. BaCl2(aq)+ K2SO4(aq) -----> BaSO4(s)+ KCl(aq)

8. 3 ways to write reactions (when they’re in aqueous solutions): (p136)
Formula unit equations
2 AgNO3 (aq) + Cu (s)  2 Ag (s) + Cu(NO3) (aq)
Total Ionic equations
2 [Ag+(aq) + NO3- (aq)] + Cu(s) 
2 Ag (s) + [Cu+(aq) + 2NO3- (aq)
Net Ionic equations
2 Ag+ (aq) + Cu (s)  2 Ag (s) + Cu2+ (aq)

9. NaCl(aq) + KBr(aq) -----> NaBr(aq) + KCl(aq)
How is this reaction written? Rewrite as total ionic.
Can you rewrite as net ionic?
No! Only spectator ions!

10. Na+ (aq) + Cl- (aq) + K+ (aq) + Br- (aq). ----->
Na+ (aq) + Cl- (aq) + K+ (aq) + Br- (aq) > Na+ (aq) Br- (aq) + K+ (aq) + Cl- (aq)

11. DD or Metathesis Acid-base:
When an acid is combined with a base, the products will be salt & water

12. HCl(aq) + NaOH(aq) -----> NaCl(aq) + H2O(l)

13. Mg(OH)2(aq) + H2SO4(aq)  MgSO4(aq) + H2O(l)

14. Ba(OH)2(aq) + CaCl2(aq) ZnCl2(aq) + K2CrO4(aq) KCl(aq) + Na2SO4(aq)

15. HCl(aq) + NaOH(aq) H2SO4(aq) + KOH(aq) HCl(aq) + NH3(aq)

16. Carbon compound + oxygen yields Carbon dioxide & water
Combustion
Carbon compound + oxygen yields Carbon dioxide & water

17. C3H6(g) + O2(g) C4H8O(l) + O2(g) C4H8O4(g) + O2(g)

18. Predict Products & Balance Rxn
CaCl2 + F2 
CaCl2 + Na 
CaCl2 + KNO3 
CaCl2 + K2SO4 

19. Predict & Balance AlBr3 + F2  AlBr3 + Zn  AlBr3 + Na 
AlBr3 + Ba(NO3)2 
AlBr3 + K2SO4 

20. Calculate the mass of solid product formed when 4
Calculate the mass of solid product formed when 4.16 g of barium chloride is added to 250 ml of 0.40 M potassium sulfate: