1. JMcL 2009 Acids and metals Starter Question

2. JMcL 2009 Brainstorming  Write down 5 things you know about acids and metals

3. JMcL 2009 The pH scale  Acid, neutral or alkali?

4. JMcL 2009 Everyday Acids  Write down the name of some common acid, alkaline and neutral solutions AcidAlkali Neutral vinegar bicarbonate of soda water lemon juice ammonia salt solution Cream of tartar milk of magnesia

5. JMcL 2009 Neutralisation (1) 10 ml acid alkali 10 ml acid 2 ml alkali 4 ml alkali 6 ml alkali 8 ml alkali 10 ml alkali

6. JMcL 2009 Neutralisation (2) 10 ml alkali acid 10 ml alkali 2 ml acid 4 ml acid 6 ml acid 8 ml acid 10 ml acid

7. JMcL 2009 Strong or weak? Acid Put these acid solutions in order (strong to weak) Alkali Put these alkali solutions in order (strong to weak)

8. JMcL 2009 Neutralisation products 1. What are the two reactants of neutralisation reaction? 2. What are the two products of a neutralisation reaction? 3. How do you separate the two products? Remove the water by evaporation the substance left behind is salt Acid and alkali Salt and water

9. JMcL 2009  What is the variable you control?  What is the variable you measure?  How will you keep your investigation fair?  What type of graph will you draw? Investigation The type of fizzy drink The pH Same volume of drink, same volume of indicator Bar graph

10. JMcL 2009 Investigation  What is wrong with this bar graph?  Bars different widths  No labels for bars  No label for vertical axis  Scale of vertical axis is not regular  Ruler was not used correctly to draw one of the bars Type of drink 0 4 11 10

11. JMcL 2009 Everyday neutralisation 1. What would you use to neutralise a bee sting? 2. What would you use to neutralise a wasp sting? 3. What would you use to neutralise acid heart burn? 4. What is used to neutralise plague acid? 5. What would a gardener use to neutralise an acid soil An alkali- like bicarbonate of soda An acid-like vinegar An alkali-like milk of magnesia The alkali in toothpaste- bicarbonate of soda An alkali- like slaked lime

12. JMcL 2009 Metal and metal compounds  Sort these into 2 groups- metals and compounds

13. JMcL 2009 Metal and metal compounds Metal compounds Metals

14. JMcL 2009 Reactions- metals with water  Put these metals into order (most reactive first) potassium -flames Sodium- fizzes violently calcuim- lots of bubbles Magnesium - a few bubbles

15. JMcL 2009 Reactions- metals with acid  Put these metals into order (most reactive first) Lead- a few bubbles gold- no bubbles iron- some bubbles copper- no bubbles Magnesium- loads of bubbles

16. JMcL 2009 Reactions- Metals with oxygen  Put these metals into order (most reactive first)

17. JMcL 2009 The reactivity series  Potassium (most reactive)  Sodium  Lithium  Calcium  Zinc  Iron  Tin  Lead  Copper  Gold  Platinum (least reactive) 1.Gold and potassium chloride 2.Potassium and gold chloride 3.Calcium and tin oxide 4.Lead and zinc hydride 5.Lithium and platinum iodide

18. JMcL 2009 Splitting compounds  What elements were seen at the electrodes when electricity was passed through copper chloride solution?

19. JMcL 2009 Splitting metal compounds  Name the elements produced from splitting these compounds

20. JMcL 2009 Electroplating & Electrolysis  What is electrolysis?  What is electroplating?  Why are some metals electroplated?

21. JMcL 2009 Acids and metals project (1)  Find out about the Klondike Gold Rush Slide 1- Name and title Slide 2- What is gold and what is it used for? Slide 3- Why is gold so expensive? Slide 4- Describe the events of the Klondike Gold Run. Slide 5- Websites used

22. JMcL 2009 Acids and metals project (2)  Find out how metals are extracted from their ores Slide 1- Name and title Slide 2- Use of aluminium Slide 3- How is aluminium extracted? Slide 4- Use of iron Slide 5- How is iron extracted? Slide 6- Use of gold Slide 7- How do we get gold? Slide 8- Websites used

23. JMcL 2009 Acids and metals project (3)  Find out about alloys Slide 1- Name and title Slide 2- What is an alloy? Slide 3- What is bronze? Slide 4- Uses of bronze Slide 5- What is brass? Slide 6- Uses of brass Slide 7- What is steel? Slide 8- Uses of steel Slide 9- What is solder? Slide 10-Uses of solder Slide 11- Websites used

24. JMcL 2009 Revision (1) Can I…. REDAMBERGREEN measure the pH of common solutions? identify acids, alkalis and neutral solutions from the pH values? remember the lower the pH of an acid the greater the acidity? remember the higher the pH of an alkali the stronger the alkali? state that acids and alkalis combine to form a neutral solution ? state that when an acid neutralises an alkali, a salt and water is formed? give real life examples of neutralisation?

25. JMcL 2009 Revision (2) Can I…. REDAMBERGREEN do an investigation on pH of fizzy drinks? list metals in order of reactivity with oxygen, water and acid? give examples of how reactivity relates to uses and sources of metals? state that more reactive metals can displace less reactive metal compounds from their solutions? state that electrolysis can be used to obtain a metal from a solution? describe the effects of electroplating? give examples of how some metals are extracted?

26. JMcL 2009 Important words  Use these words to help your spelling