1. 6.6 Single and Double Displacement
Synthesis
Decomposition
Single
Displacement
Double
Displacement

2. Single Displacement Single Displacement:
One element replaces another in a compound
Non-metals replace non-metals
Metals replace metals
Two people are dancing, and someone cuts in…

3. Single Displacement Single Displacement:
Be careful! Follow rules of metal replaces metal, and non-metal replaces non-metal
If A is a metal, B is a non-metal……what is C?

4. Single Displacement
Example 1: Zinc reacts with copper (II) sulphate to make ________ and __________.
Word equation: zinc + copper (II) sulphate  ? + ?
Formula Zn + CuSO4  ___?____ + __?___

5. Single Displacement Zn + CuSO4  ___?____ + __?___ Zinc will form Zn2+
Copper will form Cu2+
Sulphate is the complex ion SO42-
Can copper and zinc form a compound? ____
Can sulphate and zinc form a compound? ____
Why?___________________________________

6. Single Displacement
Zinc + copper(II) sulphate  copper + zinc sulphate Zn + CuSO4  Cu + ZnSO4 More examples in page 240 in your textbook

7. Single Displacement
Magnesium reacts with carbon dioxide to form magnesium oxide and carbon
Word equation ____ + _____  ____ + _____
Chem equation ____ + _____  ____ + _____
Balanced equation ____ + _____  ____ + _____

8. Double Displacement
One element in a compound displaces or replaces an element in a compound
Many happen between ionic compounds
Non-metal switches with non-metal

9. Double Displacement
AgNO3 + NaCl 