2. Calderglen High School 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. Calderglen High School Non-metal oxides answer 1 Which type of oxide dissolves in water to produce acids?

4. Calderglen High School sulphur dioxide What is formed when sulphur dioxide reacts with water in the atmosphere? Acid rain Acid rain answer 2

5. Calderglen High School SSSS oooo llll uuuu bbbb llll eeee M M M M eeee tttt aaaa llll oooo xxxx iiii dddd eeee ssss answer 3 Which type of oxide dissolves in water to produce a aa alkaline solutions?

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

7. Calderglen High School acidic Which one of the following will produce an acidic solution when dissolved in water ? answer 5 NO2 FeO Na 2 O Non metal oxides dissolve in water to form ACIDS

8. Calderglen High School 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. Calderglen High School alkaline Which of the following will produce an alkaline solution when dissolved in water ? 7 answer Na 2 O FeO NO 2 Soluble metal oxides dissolve to form alkalis

10. Calderglen High School acid What is the range of pH values for an acid ? Less than 7 8 answer

11. Calderglen High School RED Universal indicator was added to a solution and it turned RED. What type of solution is it ? acidic 9 answer

12. Calderglen High School ALKALI What is the pH range for an ALKALI ? Greater than 7 Greater than 7 10 answer

13. Calderglen High School Universal indicator was added to a solution and it turned blue. What type of solution is it? Alkaline 11 answer

14. Calderglen High School What is the pH number for a neutral substance? 7 12 answer

15. Calderglen High School ion Which ion is common to all acids? H+H+H+H+ 13 answer

16. Calderglen High School green Universal indicator was added to a solution and it turned green. What type of solution is it? neutral 14 answer

17. Calderglen High School ion Which ion is common to all alkalis? OH - OH - (hydroxide ion) (hydroxide ion) 15 answer

18. Calderglen High School 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. Calderglen High School acid Give an example of a common acid vinegar, fizzy drinks 17 answer

20. Calderglen High School alkali Give an example of a common alkali. Toothpaste, bicarbonate of soda 18 answer

21. Calderglen High School pH What is pH ? A measurement of the concentration of hydrogen ions (H+) in a substance. 19 answer

22. Calderglen High School Give two main sources of carbon dioxide production. Burning organic substances Cement production 20 answer

23. Calderglen High School What is a Carbon Footprint? The total greenhouse gas emission caused by a person or process 21 answer

24. Calderglen High School List some ways that excess carbon dioxide production may harm the environment? Global Warming Acidification of Oceans 22 answer

25. Calderglen High School List some uses of acids in food and drinks Vinegar Preservatives Flavourings 23 answer

26. Calderglen High School How can acids in food and drink affect your health ? Tooth decay 24 answer

27. Calderglen High School 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. Calderglen High School 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

29. Calderglen High School In water, how are the concentrations of hydrogen ions and hydroxide ions related? They are equal 27 answer