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Question 1
A student is identifying metal ions through flame tests. |
a) | Describe how to complete a flame test.
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b) | What colour flame is produced when a sample containing copper ions undergoes a flame test? A green B yellow C red D white
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c) | What colour flame is produced when a sample containing sodium ions undergoes a flame test? A green B yellow C red D white
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Question 2
A student wants to identify the gases present in three test tubes, A, B and C. |
a) | Describe how the student could test to see if any of the gases is carbon dioxide.
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b) | The student places a lighted splint in test tube A, which contains a colourless gas. A pop sound is heard. State the name of the gas in test tube A.
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c) | Describe the test for chlorine gas.
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Question 3
This question is about the reaction between copper carbonate and sulfuric acid. |
a) | Write a balanced chemical equation for the reaction between copper carbonate and sulfuric acid.
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b) | Describe a test the student could do to identify the gas produced.
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c) | Describe how the student would know when the chemical reaction has stopped.
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