1. NaOH + Pb(NO 3 ) 2 Pb(OH) 2 + NaNO 3 ORDER: 1.Balance metals 2.Balance non-metals 3.Balance oxygen 2 nd last 4.Balance hydrogen last Tip for balancing equations:

2. 6 Basic Types of Reactions 1.Combination (Synthesis) 2.Decomposition 3.Single replacement 4.Double replacement 5.Neutralisation 6.Combustion

3. Combination Reactions reactants join together to form a single product

4. Magnesium burns in Oxygen

5. Decomposition Reactions Products split to form 2 or more reactants

6. Electrolysis of water

7. Decomposition of Hydrogen Peroxide

8. Single Replacement Reaction A single compound replaces one element for another (ie. Metals swap positions) AB + C  AC + B

9. Hydrochloric Acid with Mg metal

10. Double Replacement Reaction When two ionic compounds swap ions with each other (eg. Cation with cation) AB + CD  AD + CB

11. Potassium iodide and lead nitrate

12. Neutralisation Reaction A special type of double replacement reaction involving an acid and base to form an ionic salt and water Eg. HBr + LiOH 

13. Combustion Reaction

14. Gasoline vs Diesel

15. Balance the reaction: hexane + oxygen  carbon dioxide + water C 6 H 14 (l) + O 2 (g)  CO 2 (g) + H 2 0 (g)