PHYSICAL SCIENCES Grade 10 TERM 3 RESOURCE PACK
PHYSICAL SCIENCES Grade 10
TERM 3
RESOURCE
PACK
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Contents
Worksheets
3
Topic 17: Reactions of Aqueous Solutions
4
Topic 18: Quantitative Aspects of Chemical Change
10
Topic 19: Vectors and Scalars
21
Topic 20: 1-D Motion, Speed, Velocity and Acceleration
26
Topic 21: Instantaneous Speed and Velocity and Equations of Motion 30
Formal Experiment
55
Technical Instructions
57
Measuring Acceleration
60
Marking Guidelines
67
Assessments69
Topic 17: Reactions of Aqueous Solutions
70
Topic 18: Quantitative Aspects of Chemical Change
74
Topic 19: Vectors and Scalars
79
Topic 20: 1-D Motion, Speed, Velocity and Acceleration
85
Topic 21: Instantaneous Speed and Velocity and Equations of Motion 92
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WORKSHEETS
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RESOURCE PACK
Topic 17: Reactions of Aqueous Solutions
WORKSHEET
1. What is meant by the following terms? 1.1 Dissolving(3) 1.2 Hydration(3)
2. Write down balanced reaction equations for each of the following substances dissolving in water:
2.1 Na2SO4(3) 2.2 A2(CO3)3(3) 2.3 Cu(NO3)2(3)
3. Describe the process by which ionic substances dissolve in water.
(5)
4. 4.1Describe a circuit which can be set up to determine whether solutions conduct electricity.(5)
4.2 What must be present in a solution for it to be able to conduct electricity?
(1)
5. Write down balanced full ionic equations to represent the following reactions:
5.1 Lead(II) nitrate reacts with potassium iodide.
(4)
5.2 Copper(II) chloride reacts with dihydrogen sulfide.
(4)
6. 6.1Describe a test that can be used to determine whether a solution possibly
contains sulfate ions.
(4)
6.2 Write down a balanced reaction equation that occurs during the test, if the solution contained potassium sulfate (K2SO4).(4)
7. 7.1Describe a test that can be used to test for the presence of chloride ions in a solution.(4)
7.2 Write down a balanced net ionic equation to represent the reaction, if the solution contained magnesium chloride (MgC2).(3)
4Grade 10 Physical Sciences
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WORKSHEETS
TOPIC 17: REACTIONS OF AQUEOUS SOLUTIONS
8. Three colourless solutions, A, B and C, contain potassium iodide, sodium carbonate and magnesium sulfate respectively. When barium chloride is added to solution A, the solution remains colourless. When barium chloride solution is added to B and C, a white precipitate is formed in both cases. When some dilute nitric acid is added to the precipitate in solution B, the precipitate dissolves.
Identify A, B and C. Give reasons for your choice.
(5)
9. Why are precipitation reactions, gas forming reactions and acid base reactions
described as ion exchange reactions?
(2)
10. Identify the reaction types represented in each of the following equations:
10.1 2KOH(aq) + H2SO4(aq) K2SO4(aq) + 2H2O(l) 10.2 2AgNO3(aq) + CaC2(aq) 2AgC(s) + Ca(NO3)2(aq) 10.3 2HNO3(aq) + Mg(OH)2(aq) Mg(NO3)2(aq) + 2H2O(l) 10.4 Na2CO3(aq) + 2HC(aq) 2NaC(aq) + H2O(l) + CO2(g)(8)
TOPIC 17
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Term 35
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