1. Group Quiz
pH, Acids and Bases

2. For each of the following, state if they are true or false i) Vinegar is an acid ii) Shampoo is slightly acidic iii) Lollies are neutral
Question 1/18

3. i) An acid is a substance that releases _____________ ions
i) An acid is a substance that releases _____________ ions. ii) A base is a substance that releases _____________ _____.
Question 2/18

4. Classify each of the following as a property of acid or a base
Turns red litmus paper blue
Neutralises a base
Feels soapy/slippery
Corrodes metals
Question 3/18

5. pH stands for “The power of _____________”
Question 4/18

6. Indicators are chemicals that ___________ ___________ to show if a substance is acidic, basic or neutral.
Question 5/18

7. The pH scale runs on a scale from _____ to _____.
Question 6/18

8. The more hydrogen ions, the lower/higher (select the correct word) the pH.
Question 7/18

9. Which is used to treat heartburn, acids or bases?
Question 8/18

10. Classify the following as an acid or a base
Classify the following as an acid or a base. i) HNO3 ii) Sodium Hydroxide iii) HCl iv) KOH v) Ammonia vi) H2SO4
Question 9/18

11. Complete the following general equation: Acid + _________  __________ + hydrogen gas
Question 10/18

12. A salt is made up of a ________________ charged cation and a ____________ charged anion. A ____________ is usually a metal ion and an anion is usually a ____________ _____
Question 11/18

13. HCl + Al  ___________ + ______ Try and balance the equation.
Question 12/18

14. What test can be used to test whether hydrogen gas is produced in a chemical reaction?
Question 13/18

15. Acids react with ________________ to produce ___________________ gas as well as ____________ and _____________.
Question 14/18

16. Na2CO3 + _________ NaCl + _____ + CO2
Question 15/18

17. Sulfuric acid + sodium hydroxide  _________ +___________
Question 16/18

18. What are the possible products that can be produced from incomplete combustion.
Question 17/18

19. Methane gas (CH4 ) goes through incomplete combustion
Methane gas (CH4 ) goes through incomplete combustion. Write a chemical formula equation to represent this reaction.
Question 18/18

20. The End : Answers

21. For each of the following, state if they are true or false
i) Vinegar is an acid
ii) Shampoo is slightly acidic
iii) Lollies are neutral
(3 marks)
True
False
Question 1

22. Question 2 An acid is a substance that releases _____________ ions.
A base is a substance that releases ___________________.
Hydrogen
Hydroxide
Question 2

23. Classify each of the following as a property of acid or a base
Turns red litmus paper blue
Neutralises a base
Feels soapy/slippery
Corrodes metals
(4 marks)
Base
Acid
Question 3

24. pH stands for “The power of _____________”
Hydrogen
Question 4

25. Indicators are chemicals that ____________ _____________ to show if a substance is acidic, basic or neutral.
(2 marks)
Change colour
Question 5

26. Question 6 The pH scale runs on a scale from ___ to ___. (2 marks)

27. The more hydrogen ions, the lower/higher (select the correct word) the pH.
Question 7

28. Which is used to treat heartburn, acids or bases?
Question 8

29. Classify the following as an acid or a base
Classify the following as an acid or a base. i) HNO3 ii) Sodium Hydroxide iii) HCl iv) KOH v) Ammonia vi) H2SO4 (6 marks)
Acid
Base
Question 9

30. Question 10 Complete the following general equation:
Acid + ______ ______+ hydrogen gas
(2 marks)
Metal  Salt
Question 10

31. A salt is made up of a ______________charged cation and a ______________charged anion. A __________is usually a metal ion and an anion is usually a ________________. (4 marks)
Positively
Negatively
Cation
Non-metal ion
Question 11

32. What test can be used to test whether hydrogen gas is produced in a chemical reaction?
Pop Test
Question 13

33. HCl + Al _______________ + _________ One mark for correct products and one mark for balancing
6HCl + 2Al 2AlCl3 + 3H2
Question 12

34. Acids react with ___________to produce ___________ ___________ gas as well as ___________ and ___________.
(4 marks)
Carbonate
Carbon Dioxide
Salt
Water
Question 14

35. Question 15 Na2CO3 + _________ NaCl + _____ + CO2
1 mark for correct reactant and product and 1 mark for balancing.
Na2CO3 + 2HCl 2NaCl + H2O + CO2
Question 15

36. Question 16 Sodium sulfate + Water
Sulfuric acid + sodium hydroxide  ________________ + _______
(2 marks)
Sodium sulfate + Water
Question 16

37. What are the three different possible products that can be produced from incomplete combustion. (3 marks)
Carbon Monoxide
Carbon/soot
Water
Question 17

38. Butane gas (C4H 10) goes through incomplete combustion
Butane gas (C4H 10) goes through incomplete combustion. Write a chemical formula equation to represent this reaction. Make sure to balance it. (1 mark for correct reactants and product, and 1 marks for balancing correctly)
2C4H O2 8CO2 + 10H2O
Question 18

39. Give yourself a mark out of 44.