09 S2 Sa2 Rev Ws_ans

  • June 2020
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LSS Sec 2 Chemistry 2009 SA2 Revision Worksheet

ANSWER KEY Part 1: Elements, Compounds and Mixtures

Part III:

Section A

Section A

Section B

Section B



Ignore Question 3 (not in syllabus )

Descriptive Question

4. Aqueous sodium sulfate: Mg Æ no change Calcium Carbonate Æ no change Sodium hydroxide Universal indicator Æ blue Magnesium metal Æ no change Dil. Hydrochloric acid universal indicator Æ red calcium carbonate Æ bubbles of gas

LSS Sec 2 Chemistry 2009 SA2 Revision Worksheet

* ignore question on calcium carbonate (not in syll)

b(i) hydrogen gas (ii) carbon dioxide gas c : Mg + 2HCl Æ MgCl2 + H2

Part IV: Separating Mixtures

LSS Sec 2 Chemistry 2009 SA2 Revision Worksheet

Part II Solution ( Please see next page )

LSS Sec 2 Chemistry 2009 SA2 Revision Worksheet

LSS Sec 2 Chemistry 2009 SA2 Revision Worksheet

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