1. Revision Quiz Acids 1 1.What is the pH scale? 2.What numbers on the pH scale show an acid? 3.What is an indicator? 4.What number is neutral? 5.What colour does UI go in acid? Measure of how much acid (concentration of H+ ions) 0-6.99 Chemical that changes different colour in acid or alkali 7 red

2. Revision Quiz Acids 2 1.Place the following items on the scale lemon juice, salt solution, ammonia solution, milk of magnesia, water and vinegar lemon juice vinegar salt solution ammonia solution waterMilk of magnesia

3. Revision Quiz Acids 3 1.What colour would UI go with vinegar? 2.What colour would UI go with oven cleaner? 3.What colour would UI go with water? 4.What does electrolysis mean? 5.Which ion do acids contain? Orange / red blue green Splitting up of ionic compound using electricity H + (aq)

4. Revision Quiz Acids 4 1.What is the formula for hydrochloric acid? 2.What is the formula for nitric acid? 3.What is the formula for sulphuric acid? 4.Which ion do all alkali’s contain? 5.Which gas will all acids give when electrolysed? HCl (aq) HNO 3(aq) H 2 SO 4(aq) OH - (aq) Hydrogen

5. Revision Quiz Acids 5 1.What apparatus do we use to d a titration? 2.What is the formula for calcium hydroxide? 3.What will happen to the pH of sodium hydroxide when water is added? 4.What will happen to the OH - (aq) concentration of sodium hydroxide when water is added? 5.What will happen to the number of OH - (aq) ions of sodium hydroxide when water is added? NaOH (aq) Ca(OH) 2(aq) Falls towards seven Decreases Stays the same (it will increase very slightly)

6. Revision Quiz Acids 6 1.What is the formula for sodium hydroxide? 2.What substance is added drop wise? 3.What is made when an acid is cancelled out by an alkali? 4.What kind of reaction is this? 5.What are the products when sodium hydroxide cancels out hydrochloric acid. Burette and pipette acid Salt and water Neutralisation Sodium chloride (salt) and water

7. Revision Quiz Acids 7 1.What are the products when a metal cancels out an acid? 2.What would you see happening? 3.Do all metals react in the same way? 4.Metals below what metal do not react with acids? 5.What are the products when calcium cancels out hydrochloric acid. Salt and hydrogen Bubble of gas All reactive metals do. Some metals don’t react copper calcium chloride (salt) and hydrogen

8. Revision Quiz Acids 8 1.What are the products when a metal oxide cancels out an acid? 2.Do all metal oxides react in this way? 3.What is the made when calcium oxide cancels out hydrochloric acid 4.What kind of reaction is this? 5.What are the products when sodium oxide cancels out nitric acid. Salt and water No only soluble ones do. Calcium chloride + water neutralisation Sodium nitrate and water

9. Revision Quiz Acids 9 1.What are the products when a metal carbonate cancels out an acid? 2.What is the carbonate ion? 3.What is the made when calcium carbonate cancels out hydrochloric acid 4.What kind of reaction is this? 5.What are the products when calcium cancels out nitric acid. Salt and water + carbon dioxide CO 3 2- Calcium chloride + water + carbon dioxide neutralisation calcium nitrate and carbon dioxide and water

10. Revision Quiz Acids 10 1.What is a base? 2.There are four examples of types of bases. What are they? 3.The ammonium ion can take place of a metal. What is the formula for ammonium carbonate. 4.What is an alkali? 5.What is a salt? Bases cancel out acids Metal, metal hydroxide(alkali), metal carbonate, metal oxide (NH 4 ) 2 CO 3 A soluble base. (it makes OH - ions in water) The product of a neutralisation reaction.

11. Revision Quiz Acids 11 1.What is a made when sodium hydroxide cancels out sulphuric acid? 2.What is a made when sodium carbonate cancels out hydrochloric acid? 3.What is a made when magnesium cancels out nitric acid? 4.Give an example of an alkali? 5. What is a made when copper cancels out hydrochloric acid? Sodium sulphate and water Sodium chloride and water Magnesium nitrate and hydrogen Sodium hydroxide Nothing copper is too unreactive to react with this acid.

12. Revision Quiz Acids 12 1.Soluble salts are named after the acids that make them up. What salts do we get when hydrochloric acid is used? 2.What salts do we get when nitric acid is used? 3.What salts do we get when sulphuric acid is used? 4.What type of reaction makes an insoluble salt? 5.What is a spectator ion? chlorides nitrates sulphates precipitation Ions not involved in the reaction

13. Revision Quiz Acids 13 1.What do you put on a bee sting to soothe it? 2.What do you put on wasp sting to soothe it? 3.What kind of chemicals do indigestion remedies have in them? 4.What causes acid rain? 5.A “cat” can reduce acid rain. What job does a catalytic converter do? Bicarbonate of soda solution vinegar Bases Burning coal can make SO 2 which dissolves in rain water Car exhausts make NO x which dissolves in rain water Catalytic converters change nasty gases into nice gases