The document describes 5 types of chemical reactions: 1. Synthesis reactions combine elements to form compounds. 2. Decomposition reactions break compounds down into their constituent elements. 3. Single displacement reactions occur when one element displaces another in a compound. 4. Double displacement reactions involve the switching of ions between two ionic compounds in aqueous solution. 5. Combustion reactions involve the burning of hydrocarbons in oxygen to produce carbon dioxide and water.

1. Types of Chemical Reactions

2. 1. Synthesis(the hook-up)

3. 1. Synthesis(the hook-up)element + element  compound

4. 1. Synthesis(the hook-up)A + B  AB

5. 1. Synthesis(the hook-up)2Na + Cl2 2NaCl

6. Mg(s) + O2(g) MgO(s)

7. 2.Decomposition(the break-up)compound  element + element

8. 2.Decomposition(the break-up) AB  A + B

9. 2.Decomposition(the break-up)2H2O2 2H2O + O2

11. 3.Single Displacement(the cheater)

12. 3.Single Displacement(the cheater)One element knocks out (“displaces”) another element in a compound

13. 3.Single Displacement(the cheater)AB + X  AX + B

14. 3.Single Displacement(the cheater)2HCl + Zn  ZnCl2 + H2

15. Mg(s) + 2HCl(aq) MgCl(s) + H2(g)

16. 4.Double Displacement(the swap)

17. 4.Double Displacement(the swap)Two aqueous ionic compounds switch places with each other

18. 4.Double Displacement(the swap)AB + XY  AY + XB

19. 4.Double Displacement(the swap)BaCl2 + Na2SO4 BaSO4 + 2NaCl

20. 2KI+ Pb(NO3)2-> PbI2 + 2K(NO3)

21. 5.Combustion

22. 5.Combustionhydrocarbon + oxygen gas  carbon dioxide + water

23. 5.CombustionCxHy + O2 CO2 + H2O

24. 5.CombustionCH4 + O2 CO2 + H2O