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

Question 1 of 21

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

Question 2 of 21

3. What is an acid?

Question 3 of 21

4. 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 4 of 21

5. In the test of a gas, a lit splint gives a squeaky pop. What is the gas?

Question 5 of 21

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

Question 6 of 21

7. Give the name of the substance which has the formula HCl (aq)

Question 7 of 21

8. What is the universal indicator colour of a strongly alkali solution?

Question 8 of 21

9. What is the typical range of the pH scale?

Question 9 of 21

10. Describe how you would carry out a flame test

Question 10 of 21

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

Question 11 of 21

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

Question 12 of 21

13. Is iron (III) hydroxide acidic or basic?

Question 13 of 21

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

Question 14 of 21

15. An alkali is called a proton _________

Question 15 of 21

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

Question 16 of 21

17. What is defined as a proton acceptor?

Question 17 of 21

18. What is a base?

Question 18 of 21

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

Question 19 of 21

20. State the formula of the hydrogen ion

Question 20 of 21

21. Is barium carbonate soluble?

Question 21 of 21


 

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