1. When NaOH is added to a sample, a brown precipitate forms. What cation was present in the sample?

Question 1 of 10

2. Write a word equation for the reaction between sodium hydroxide and iron(II) sulfate

Question 2 of 10

3. In the flame test for copper (II) ions what colour is the result?

Question 3 of 10

4. How are calcium ions identified, and what is the result?

Question 4 of 10

5. When testing for halide ions, after silver nitrate is added to a sample a cream precipitate is formed. Give the formula of the anion present in the sample.

Question 5 of 10

6. In the test for sulfate ions, what result shows they are present?

Question 6 of 10

7. Describe how you would carry out a flame test

Question 7 of 10

8. Describe the test for bromide ions

Question 8 of 10

9. In a flame test, a orange-red colour is seen. Give the formula of the cation which is present.

Question 9 of 10

10. When NaOH is added to a sample, the resultant gas turns damp red litmus paper blue. What cation was present in the sample?

Question 10 of 10


 

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