1. Universal Indicator can be used to find the pH of a solution
pH scale
Indicators can be used to find out whether a solution is acid, alkaline or neutral
Universal Indicator can be used to find the pH of a solution
Acid – red, pH less than 7
Neutral – green, pH = 7
Alkali – blue, pH greater than 7
pH scale

2. pH scale
pH scale

3. pH scale
pH scale

4. pH scale
pH scale

5. Acids react with alkaline solutions to form a salt and water
Neutralisation
Acids react with alkaline solutions to form a salt and water
Hydrochloric acid produces chlorides
Nitric acid produces nitrates
Sulphuric acid produces sulphates
Ammonia can dissolve in water to produce an alkaline solution. This can be neutralised with acids to produce ammonium salts
Indicators can monitor neutralisation reactions
Neutralisation

6. Neutralisation – Hydrochloric acid

7. Neutralisation – Sulphuric acid

8. Neutralisation – Nitric acid

9. Neutralisation – Fertiliser

10. Reaction of Metals and Acid

11. Metal Oxides & Hydroxides
Transition metal oxides and hydroxides do not dissolve in water. They are called bases
They react with acids to produce salts that are soluble
The excess metal oxide can be filtered off
Metal Oxides & Hydroxides

12. Wordsearch
Wordsearch

13. Quiz
Quiz