1. Types of Reactions
Single Replacement

2. Single Replacement
“Player” – The anion is bonded to a cation, but becomes bonded to a different cation.
Reactants = 1 element(s) and 1 compound(aq)
Products = 1 element(s) and 1 compound(aq)

3. Single Replacement A + BC B + AC A (s) (element) BC (aq) (compound)
B (s) (element)
AC (aq) (compound)

4. Single Replacement Not all reactions take place.
Use your Reactivity Table to determine if the reaction takes place or not.
The higher up on the list a metal is, the more reactive it is.

5. Single Replacement
“A” must be higher on the list than “B” for the reaction to take place.
A + BC B + AC
If A is higher on the list, the reaction happens as shown.
If B is higher on the list, then the equation becomes:
A + BC N.R.

6. Single Replacement Example:
aluminum + copper chloride aluminum chloride and copper
Use your Metal Reactivity Chart. Does Aluminum lie above Copper?

7. Single Replacement Example: 2Al(s) + 3CuCl2(aq) 2 AlCl3(aq) + 3Cu(s)
2Al + 3Cu Cl Al3+ + 6Cl- + 3Cu
2Al + 3Cu Al Cu

8. Single Replacement Example: Aluminum + Sodium Chloride
Use your Metal Reactivity Chart. Does Aluminum lie above Sodium?
NO!
Al(s) NaCl(aq) N.R.