2. ey/mmcl2003 1111 2222 3333 4444 5555 6666 7777 8888 9999 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

3. ey/mmcl2003 Non-metal oxides answer 1 Which type of oxide dissolves in water to produce acids?

4. ey/mmcl2003 sulphur dioxide What is formed when sulphur dioxide reacts with water in the atmosphere? Acid rain Acid rain answer 2

5. ey/mmcl2003 MMMM eeee tttt aaaa llll o o o o xxxx iiii dddd eeee ssss answer 3 Which type of oxide dissolves in water to produce a aa alkaline solutions?

6. ey/mmcl2003 acid rain Give an example of the damaging effects of acid rain Destroys wildlife, damages buildings/metal structures answer 4

7. ey/mmcl2003 acidic Which one of the following will produce an acidic solution when dissolved in water ? answer 5 NO2 FeO Na 2 O

8. ey/mmcl2003 How would you use universal indicator or pH paper to find the pH of a substance ? Add indicator/pH paper to the substance and the check colour answer 6

9. ey/mmcl2003 alkaline Which of the following will produce an alkaline solution when dissolved in water ? 7 answer Na 2 O FeO NO 2

10. ey/mmcl2003 acid What is the range of pH values for an acid ? Less than 7 8 answer

11. ey/mmcl2003 RED Universal indicator was added to a solution and it turned RED. What type of solution is it ? acidic 9 answer

12. ey/mmcl2003 ALKALI What is the pH range for an ALKALI ? Greater than 7 Greater than 7 10 answer

13. ey/mmcl2003 Universal indicator was added to a solution and it turned blue. What type of solution is it? Alkaline 11 answer

14. ey/mmcl2003 What is the pH number for a neutral substance? 7 12 answer

15. ey/mmcl2003 ion Which ion is common to all acids? H+H+H+H+ 13 answer

16. ey/mmcl2003 green Universal indicator was added to a solution and it turned green. What type of solution is it? neutral 14 answer

17. ey/mmcl2003 ion Which ion is common to all alkalis? OH - OH - (hydroxide ion) (hydroxide ion) 15 answer

18. ey/mmcl2003 HYDROGEN During electrolysis of an acid hydrogen gas is given off. What is the test for HYDROGEN gas? Burns with a pop! 16 answer

19. ey/mmcl2003 acid Give an example of a common acid vinegar, fizzy drinks 17 answer

20. ey/mmcl2003 alkali Give an example of a common alkali. Toothpaste, bicarbonate of soda 18 answer

21. ey/mmcl2003 pH What happens to the pH of an acid when diluted with water? i n It i nc re as es to 7 19 answer

22. ey/mmcl2003 ALKALI What happens to the pH of an ALKALI when diluted with water ? d e c r e as es It d e c r e as es to 7 20 answer

23. ey/mmcl2003 acidity What happens to the acidity of an acid when diluted with water ? The acidity d e c r e as es (less acidic) 21 answer

24. ey/mmcl2003 alkalinity What happens to the alkalinity of an alkali when diluted with water? It d e c r e as es - becomes less alkaline 22 answer

25. ey/mmcl2003 concentration of H + What happens to the concentration of H + ions in an acid when diluted with water? The concentration d e c r e as es 23 answer

26. ey/mmcl2003 concentration of OH - What happens to the concentration of OH - ions in an alkali when diluted with water ? The concentration d e c r e as es 24 answer

27. ey/mmcl2003 concentration Calculate the concentration of a solution containing 0.5 moles of solute dissolved in 500 cm 3 of water. C = M/V 0.5/0.5 = 1 moles per litre 25 answer

28. ey/mmcl2003 mass Calculate the mass of NaOH required to make 500cm 3 of a 0.2 mol/l solution of sodium hydroxide ? 26 answer Moles = CxV 0.2 x 0.5 = 0.1 mole 1 mole of NaOH 23 + 16 +1 = 40 0.1 moles = 0.1 x40 = 4g