1. Chemical Reactions http://bluebuddies.com/Smurfs_Black_and_White_Smurf_Pictures-52.htm

2. Review

3. Reactant a substance that enters into a chemical reaction Product a substance that is produced by a chemical reaction

4. Energy Endothermic Reaction A chemical reaction in which energy is absorbed (is a reactant) Examples? Exothermic Reaction A chemical reaction in which energy is released (is a product) Examples?

5. New Material

6. The Dance Synthesis(combination) Decomposition Single-displacement (single-replacement) Double-displacement (double-replacement) Combustion

7. Synthesis A + B AB ___Mg + ___O 2 ___MgO http://www.usoe.k12.ut.us/CURR/Science/sciber00/8th/matter/sciber/chemtype.htm

8. Decomposition AB A + B ___ H 2 O ___ H 2 + ___ O 2 http://www.usoe.k12.ut.us/CURR/Science/sciber00/8th/matter/sciber/chemtype.htm

9. Single Replacement A + BC ---> AC + B Mg + 2 H 2 O ---> Mg(OH) 2 + H 2 F 2 + 2 KCl CI 2 + 2 KF

10. Note: In single replacement reactions, Like replaces like! What this means: metals replace metals or cations, nonmetals replace nonmetals, or anions!! http://www.usoe.k12.ut.us/CURR/Science/sciber00/8th/matter/sciber/chemtype.htm

11. Double Replacement AB + CD ---> AD + CB ___Pb(NO 3 ) 2 + ___KI ---> ___PbI 2 + ___KNO 3 Again, Like replaces like. http://www.usoe.k12.ut.us/CURR/Science/sciber00/8th/matter/sciber/chemtype.htm

12. Combustion a hydrocarbon combines with oxygen gas to produce carbon dioxide and water. C n H n + O 2 H 2 O + CO 2 It is also called burning.

13. Recap Synthesis(combination) Decomposition Single-displacement Double-displacement Combustion AB + C AC + B C n H n + O 2 CO 2 + H 2 O A + B AB AB A + B AB + CD AD + CB

14. Practice

15. __NaOH + __KNO 3 --> __NaNO 3 + __KOH A.Synthesis(combination) B.Decomposition C.Single-replacement D.Double-replacement E.Combustion

16. __CH 4 + __O 2 __CO 2 + __H 2 O A.Synthesis(combination) B.Decomposition C.Single-replacement D.Double-replacement E.Combustion

17. __Fe + __NaBr --> __FeBr 3 + __Na A.Synthesis(combination) B.Decomposition C.Single-replacement D.Double-replacement E.Combustion

18. __CaSO 4 + __Mg(OH) 2 __Ca(OH) 2 + __MgSO 4 A.Synthesis(combination) B.Decomposition C.Single-replacement D.Double-replacement E.Combustion

19. __NH 4 OH + __HBr __H 2 O + __NH 4 Br A.Synthesis(combination) B.Decomposition C.Single-replacement D.Double-replacement E.Combustion

20. __Pb + __O 2 __PbO 2 A.Synthesis(combination) B.Decomposition C.Single-replacement D.Double-replacement E.Combustion

21. __Na 2 CO 3 __Na 2 O + __CO 2 A.Synthesis(combination) B.Decomposition C.Single-replacement D.Double-replacement E.Combustion

22. Questions?