1. Chemistry Reaction Types

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3. Anatomy of a Chemical Equation Flour Eggs Milk + Pancakes  Plus (reacts with) Produces (s)(l)(s) State of matter (l) = liquid (s) = solid (g) = gas (aq) = aqueous (dissolved in water)

4. Rust  Iron reacts with oxygen in air to make iron oxide (FeO) Fe (s) + O 2(g)  FeO (s)

5. Hydrolysis  Water is zapped with electricity to make hydrogen and oxygen gases H 2 O (l)  O 2(g) + H 2(g) electricity

6. Reaction Types There are 5 main types of reactions: –Combination/Synthesis –Decomposition –Single replacement –Double replacement –Combustion

7. Combination

8. iron + chlorine  iron (II) chloride Fe (s) + Cl 2(g)  FeCl 2(aq)

9. Decomposition

10. sodium chloride  sodium + chlorine NaCl (s)  Na (s) + Cl 2(g)

11. Single replacement

12. sodium chloride + lithium  sodium + lithium chloride NaCl (aq) + Li (s)  Na (s) + LiCl (aq)

13. Double Replacement

14. Double replacement sodium chloride + lithium fluoride  sodium fluoride + lithium chloride NaCl (aq) + LiF (aq)  NaF (aq) + LiCl (aq)

15. Combustion any hydrocarbon + oxygen  carbon dioxide + water C 2 H 4(g) + 3O 2(g)  2CO 2(g) + 2H 2 O (g) heat

16. What type is this? Combination

17. What type is this? Single Replacement

18. What Type is This? Magnesium + silver nitrate  single Replacement

19. What Type is This? Nitrogen Triiodide  Decomposition

20. What Type is This? Sodium + Chlorine  Combination

21. Reaction Types Project! Make a power point (similar to this one) with… Pictures to represent the 4 main reaction types 1 chemical example of each type You may work with a partner or group of 3– from any chem class