1. CHEMICAL REACTIONS
4 types

2. SYNTHESIS
two or more
substances react
to form a single
substance.

3. General: A + B  AB Example C + O2  CO2  + O O O O O O O O O O O O O

5. Decomposition
a compound breaks
down into two or more
simpler substances.

6. Example: NaCl  Na + Cl  Cl Na Cl + Na
General: AB  A + B

7. Example 2HgO  2Hg + O2  O Hg Hg O +
General: AB  A + B

9. Single Replacement
one element takes the place of another element in a compound.

10. Example: Zn + CuCl2  ZnCl2 + Cu Zn Cl Cu + Cl Zn Cu +
General: AB + C  AC + B

12. Double Replacement
two different compounds exchange positions and form two new compounds.

13. Example: MgO + CaS  MgS + CaO Mg Ca + O S Mg Ca +
General: AB + CD  AD + CB

15. You are to draw
examples of each
type of reaction.
Let’s come up with a
rubric to go on the
back of the drawing.