1. Metal Salts D. Crowley, 2007

2. Metal Salts To know how to make particular metal salts, and their uses To know how to make particular metal salts, and their uses

3. Key Reactions You have seen some key reactions so far You have seen some key reactions so far In your book, you need to produce a page of the key reactions we have seen (for revision purposes) In your book, you need to produce a page of the key reactions we have seen (for revision purposes) KEY REACTIONS KEY REACTIONS metal + oxygen → metal oxide metal + water → metal hydroxide + hydrogen metal carbonate + acid → salt + water + carbon dioxide metal + acid → salt + hydrogen acid + alkali → salt + water

4. Salts Salts are extremely useful chemicals Salts are extremely useful chemicals There are many different salts which can be produced, and their uses are vary varied… There are many different salts which can be produced, and their uses are vary varied… They are produced when a neutralisation reaction occurs They are produced when a neutralisation reaction occurs

5. What Salt? Different salts are produced from different acids Different salts are produced from different acids Hydrochloric acid makes a metal chloride Sulphuric acid makes a metal sulphate Nitric acid makes a metal nitrate Phosphoric acid makes a metal phosphate

6. Salt uses Salts can be put to many uses, including: –Fertilisers (calcium phosphate & potassium nitrate) –Preservatives (sodium chloride) –Gun powder (potassium nitrate) –Varnish (copper sulphate) –Dye (copper sulphate) –Photographic film (silver nitrate)

7. Salt Formation It is key you remember the main reactions (including those which produce a salt) It is key you remember the main reactions (including those which produce a salt) Remember, the salt can be worked out from looking at the reactants we started with Remember, the salt can be worked out from looking at the reactants we started with Hydrochloric acid makes a metal chloride… Cl Sulphuric acid makes a metal sulphate…. SO 4 Nitric acid makes a metal nitrate…. NO 3 Phosphoric acid makes a metal phosphate …. PO 4 Ethanoic acid makes a metal ethanoate …. CH 3 CO 2 H

8. Worksheet See if you can complete the worksheet about salts See if you can complete the worksheet about salts