1. Reaction Types Mr H J Graham BSc PGCE 1 Types Of Chemical Reaction

2. Reaction Types Mr H J Graham BSc PGCE 2 Synthesis Reactions In a synthesis reaction, two or more substances combine to form a new compound. This type of reaction is represented by the following equation. In a synthesis reaction, two or more substances combine to form a new compound. This type of reaction is represented by the following equation. A + B ---------  AB A + B ---------  AB A and B represent the reacting elements or compounds AB the product A and B represent the reacting elements or compounds AB the product

3. Reaction Types Mr H J Graham BSc PGCE 3 Synthesis Reaction 1 Aluminium and bromine Aluminium and bromine Forms aluminium bromide Forms aluminium bromide 2Al + 3Br 2 >>>>>> 2AlBr 3 2Al + 3Br 2 >>>>>> 2AlBr 3 Watch the.MOV and then describe the reaction in your books Watch the.MOV and then describe the reaction in your books

4. Reaction Types Mr H J Graham BSc PGCE 4 Synthesis Reaction 2 Sodium reacting with chlorine Sodium reacting with chlorine Forms sodium chloride (common salt) Forms sodium chloride (common salt) 2Na + Cl 2 >>>>>>>>> 2NaCl 2Na + Cl 2 >>>>>>>>> 2NaCl Watch the.MOV file Watch the.MOV file

5. Reaction Types Mr H J Graham BSc PGCE 5 Synthesis Reaction 3 Zinc reacting with oxygen Zinc reacting with oxygen Forms zinc oxide (sun block) Forms zinc oxide (sun block) 2Zn + O 2 >>>>>>>>> 2ZnO 2Zn + O 2 >>>>>>>>> 2ZnO Watch the.MOV file Watch the.MOV file

6. Reaction Types Mr H J Graham BSc PGCE 6 Single Replacement Reaction In a single replacement reaction (displacement reaction) one element replaces a similar element These reactions can be represented by AB + C >>>>>> AC + B

7. Reaction Types Mr H J Graham BSc PGCE 7 Single Replacement Reaction 1 The famous Thermite reaction is highly exothermic. Aluminium is simply heated with rust 2Al + Fe 2 O 3 >>>>>> Al 2 O 3 + 2Fe + HEAT Watch the.MOV…..and then describe the reaction

8. Reaction Types Mr H J Graham BSc PGCE 8 Single Replacement Reaction 2 The reduction of copper oxide by carbon, produces copper 2CuO + C >>>>>>>>> Cu + CO 2 Watch the.MOV…..and then describe the reaction

9. Reaction Types Mr H J Graham BSc PGCE 9 Single Replacement Reaction 3 How can you make silver crystals ? Watch the.MOV…..and then describe the reaction

10. Reaction Types Mr H J Graham BSc PGCE 10 Decomposition Reactions In a decomposition reaction, single compounds undergo reactions that produce two or more simpler substances AB >>>>>>>>>> A + B

11. Reaction Types Mr H J Graham BSc PGCE 11 Decomposition Reactions 1 What happens when Nitrogen Tri-iodide NI 3 is tickled with a feather? Watch the.MOV…..and then describe the reaction

12. Reaction Types Mr H J Graham BSc PGCE 12 Decomposition Reactions 2 What happens during the electrolysis of Water Watch the.MOV…..and then describe the reaction

13. Reaction Types Mr H J Graham BSc PGCE 13 Fin