1. Chemical Reactions
Text Reference: 8.2 (pg )

2. Types: Synthesis
Example C + O2 O C +  O C
General: A + B  AB

3. Types: Decomposition
Example: NaCl  Cl Na Cl + Na
General: AB  A + B

4. Types: Single Replacement
Example: Zn + CuCl2  Zn Cl Cu + Cl Zn Cu +
General: AB + C  AC + B

5. Types: Double Replacement
Example: MgO + CaS S O  Mg Ca + O S Mg Ca +
General: AB + CD  AD + CB

6. Types: Combustion CHO + O2  CO2 + H2O CH4 + O2  CO2 + H2O
CH3OH + O2  CO2 + H2O
Reactants: always oxygen with another compound that contains hydrogen and carbon
Products: always CO2 + H2O

7. The Activity Series
Text Reference: 8.3 (pg )

8. We have looked at several reactions: Fe + CuSO4  Cu + Fe2(SO4)3
Li + H2O  LiOH + H2
The activity series ranks the relative reactivity of metals.
It allows us to predict if certain chemicals will undergo single replacement reactions when mixed.
Metals near the top are most reactive and will replace metals near the bottom. K Na Li Ca Mg Al Zn Fe Ni Sn Pb H Cu Hg Ag Au

9. Q: Which of these will react? Fe + CuSO4  Ni + NaCl  Li + ZnCO3 
Al + CuCl2  K Na Li Ca Mg Al Zn Fe Ni Sn Pb H Cu Hg Ag Au
No, Ni is below Na
Yes, Li is above Zn
Cu + Fe2(SO4)3
Yes, Al is above Cu
NR (no reaction)
Yes, Fe is above Cu
Zn + Li2CO3
Cu + AlCl3

10. A: No for cold, yes if it is hot/steam Mg + H2O  hot H2O H2 + Mg(OH)2
The reaction with H2O depends on metal reactivity & water temp.
Q: will Mg react with H2O? K Na Li Ca Mg Al Zn Fe Ni Sn Pb H Cu Hg Ag Au
cold H2O
A: No for cold, yes if it is hot/steam
Mg + H2O 
hot H2O
H2 + Mg(OH)2
steam
Q: Zn + HCl 
H2 + ZnCl2
acid
Complete these reactions:
Al + H2O(steam) 
Cu + H2O 
Na + H2O 
H2 + Al(OH)3 NR
H2 + NaOH

11. Other Activity Series Information
All metals will have a specific place in the activity series. For simplicity, only the most common metals are shown.
The metals near the top of the activity series are more reactive because their valence electrons are more easily removed.

12. Mg + AgNO3  Ag+ Mg(NO3)2 Cu + AgNO3  Ag+ Cu(NO3)2 Zn + AgNO3 
Ag+ Zn(NO3)2
AgNO3
Zn + CuCl2 
Cu + ZnCl2
Mg + CuCl2 
Cu + MgCl2
CuCl2 NR
Mg+ Fe(NO3)3 
Fe+ Mg(NO3)2
Zn+ Fe(NO3)3 
Fe+ Zn(NO3)2
Fe(NO3)3 NR

13. Homework
P. 264 #1-3
P. 267 #1-3