1. A pure, dry sample of an insoluble salt can be prepared starting with two soluble reactants. What is this method called?

Question 1 of 21

2. How are lithium ions identified, and what is the result?

Question 2 of 21

3. What is the universal indicator colour of a pH 4-6 solution?

Question 3 of 21

4. If ammonium nitrate NH₄NO₃ contains the NO₃⁻ ion, what is the formula for the other ion?

Question 4 of 21

5. With universal indicator, what is the pH of a red solution?

Question 5 of 21

6. Describe how you would carry out a flame test

Question 6 of 21

7. Is silver carbonate soluble?

Question 7 of 21

8. Work out the empirical formula of an oxide of chlorine contains 7.1 g of chlorine and 1.6 g of oxygen.

Question 8 of 21

9. Write the word equation to represent the reaction between copper oxide and sulfuric acid

Question 9 of 21

10. Which gas will bleach moist litmus paper?

Question 10 of 21

11. Which two substances are added when testing for halide ions, and what is the result if they are present?

Question 11 of 21

12. What is a base?

Question 12 of 21

13. A pure, dry sample of a soluble salt can be prepared starting with an insoluble reactant. What is this method called?

Question 13 of 21

14. A pure, dry sample of a soluble salt can be prepared starting from an acid and alkali. What are the two stages of this method called?

Question 14 of 21

15. What method would be followed to prepare a sample of pure, dry lead (II) sulfate?

Question 15 of 21

16. An acid is called a proton _________

Question 16 of 21

17. When preparing hydrated copper(II) sulfate crystals starting from copper(II) oxide, why is an excess of copper (II) oxide added?

Question 17 of 21

18. What is defined as a proton acceptor?

Question 18 of 21

19. What is an alkali compared to a base?

Question 19 of 21

20. What is the test for iron (II) ions (Fe²⁺) and what is the result?

Question 20 of 21

21. What is an alkali?

Question 21 of 21


 

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