1. Describe the test for chlorine gas

Question 1 of 21

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

Question 2 of 21

3. In a flame test, why is hydrochloric acid used?

Question 3 of 21

4. An alkali is called a proton _________

Question 4 of 21

5. Can a base neutralise an acid?

Question 5 of 21

6. Give the name of the blue precipitate formed when sodium hydroxide is added to a solution containing Cu²⁺

Question 6 of 21

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

Question 7 of 21

8. What is the universal indicator colour of a pH 0-3 solution?

Question 8 of 21

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

Question 9 of 21

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

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

Question 12 of 21

13. If nitric acid (HNO₃) produces H⁺ ions, what is formula for the other ion?

Question 13 of 21

14. What is defined as a proton donor?

Question 14 of 21

15. Is potassium sulfate soluble?

Question 15 of 21

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

Question 16 of 21

17. When preparing hydrated copper(II) sulfate crystals starting from copper(II) oxide, why is the acid gently heated?

Question 17 of 21

18. What is an alkali?

Question 18 of 21

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

Question 19 of 21

20. 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 20 of 21

21. What is the empirical formula of an alcohol with the analysis; 52.2% C, 13.0% H and 34.8% O?

Question 21 of 21


 

Related Posts: