1. Replacement Reactions

2. Single Replacement
One element replaces a similar element in a compound
A + BX → AX + B
A replaces B if A and B are similar
Metals can replace less reactive metals
Al + Fe(NO3) → Al(NO3) + Fe

3. Metals can replace H
Mg + HCl → MgCl2 + H2
Na + H2O → NaOH + H2

4. Halogens can replace other halogens
Br2 + KCl → KBr + Cl2

5. Single Replacement Reactions
Al + Cu(NO3)2 
NaCl + F2 
K + H2O 
Na + Mg(OH)2 
Ni + FeSO4 

6. Double Replacement Ions of two compounds exchange places
AX + BY → AY + BX
Double Replacement reactions are often evidenced be the formation of a precipitate or the production of a gas

7. Practice HCl + AgNO3  CaCl2 + Na3PO4  Pb(NO3)2 + BaCl2 
FeCl3 + NaOH 
H2SO4 + NaOH 
KOH + CuSO4 

9. Mixed Practice
State the type, predict the products, and balance the following reactions:
BaCl2 + H2SO4 
C6H12 + O2 
Zn + CuSO4 
Cs + Br2 
FeCO3 