Download Questions for the chemistry test

Questions for C3
1) Describe a Qualitative Analysis?
2) Describe a Quantitative Analysis?
3) Name 2 Ionic compounds contained in water?
4) Flame tests are commonly used to test what type of ion?
5) What chemical is used for precipitation reaction?
6) Copy and complete the table.
7.
8. Complete the table with the halides.
9. Explain the test for a halide ion.
10. Explain the test for ammonia, what colour will the litmus paper turn?
11. Give 2 uses of Ion identification used in industries?
12. What type of water makes a lather?
13. Name the ions in hard water?
14. Which types of water cannot be softened?
15. What type of water can be softened by boiling?
16. Write the equation to calculate concentration?
17. Water is softened by boiling. It converts the Calcium Hydrogen carbonate into insoluble Calcium
Carbonate (lime scale). Write out the word equation.
18. Explain the purification of water using an ion exchange column.
19. Give 3 ways in which substances can be measured in?
20. State AVEGADRO’s number?
21. Write down the equation for calculating the number of moles in an element and the number of
moles of a compound.
22. Draw and explain the process to make copper sulphate crystals. (5 steps)
23. Name the type of reaction taking place….Acid + alkali = Salt +water ?
24. What is another name of a BASE?
25. Name the instrument used to measure the base accurately?
26. Name the instrument used to measure the acid?
27. Why is universal indicator not used in a titration?
28. Name the gas produced when an acid dissolves in water?
29. Name the type of solution needed for electrolysis to occur?
30. Oxidation is the loss of electrons at which electrode?
31. Name the electrode where reduction takes place?
32. Name a use of sodium?
33. Give a use of liquid sodium and explain why it is used?
34. Write out the half equations for the electrolysis of sodium chloride?
35. write the half equations for the electrolysis of Lead Bromide.
36. Write the symbol and charge for a hydrogen Ion?
37. write the symbol and charge for a Hydroxide Ion.?
38. name the 4 aqueous ions in salt water?
39. What is the overall equation for the electrolysis of Sodium chloride? And the half equations?
40. Name the type of copper used at the anode?
41. Name the type of copper used at the cathode?
42. Name the electrolyte in the purification of copper?
43. State the half equations for the purification of copper?
44. Give 5 metals and state how they are used in electrolysis?
45. Give the use of a gas syringe?
46. Define the term yield?
47. Explain Eutrophication.
48. Is the Haber process reversible?
49. define the term Dynamic equilibrium (Haber Process)
50. state the balanced symbol equation for the Haber process.
51. Explain how pressure affects the yield in the Haber process?
52. Explain how a high and a low temperature affect the yield of ammonia?
53. State the temperature of the Haber process.
54. State the atmospheres needed for the Haber process.
55. Name the catalyst used.
56. Explain the role of a catalyst?
57. State the balanced symbol equation for fermentation.
58. Name the enzyme in fertilisation.
59. Explain how alcohol is made through fermentation?
60. State the two conditions needed for fermentation to occur.?
61. State 3 effects of alcohol on the body?
62. Explain the hydration of Ethene?
63. State the symbol equation for the production of ethane using steam.
64. Define the term homologous?
65. Describe the type of bonds in an alkane?
66. Describe the bonds in an alkene?
67. State the group found in alcohols?
68. Complete the table
69. Draw the molecular structure for the production of an ester. And write the word equation
underneath.
70. Name two substances react to form an ester?
71. Give two used for esters?
72. Ethanol reacts with ethanoic acid to from which ester
73. state the word equation to form a soap from fats.
74. Fats and oils are examples of?
75. Are Oils saturated or unsaturated
76. What type of double bond do fats contain?
77. Explain how an oil can be turned into margarine?
78. Define the term hydrophobic? 79. Define the term hydrophilic?
80. Explain how soaps work? (6 bullet points?)