C2.4 Salts

1. What happens when salts are exposed to the atmosphere?

2. A solution that cannot dissolve any more solute at a given temperature or in a given solvent is called

3. Which of the following equation describes the effect of heat on Sulphates

4. Salt is a substance formed when the hydrogen ions in acid are wholly or partially replaced by a Cation. True or False

5. Mention the ways of preparing soluble salts

6. Explain direct synthesis or direct combination of elements

7. Give the name of the reaction where the metal ions of the salts simply exchange their anions to form new salts is called? Pb(NO3 )2 (aq) + MgSO4 (aq) = PbSO4 (S) + Mg(NO3)2 (aq)   

8. All chlorides are soluble except Lead and silver however Lead (II) chloride is soluble in hot water. Yes or No

9. A salt that contains a replaceable hydrogen atom i.e. NaHCO3 is known as:

10. The fixed amount of water which is contained within the crystal structure of salt is called

11. The most reactive metals salts are soluble in water {Potassium, Sodium and Ammonium} True or False

12. When metal carbonates are heated they form metal oxides and carbon (IV) oxide apart from pure carbonates of Sodium and Potassium which only lose their water of crystallization True or Fasle

13. The ions that remain unchanged during a chemical reaction are called

14. All suphates salts are soluble except those of Barium and Lead. True or False

15. Which of the following is not among a normal acid in the list?

16. What are the by-products between the reactions of acids with metal carbonates?

17. Mention the uses of salts

18. What is the Main method of preparation of insoluble salts?

19. The method of preparing a specific salt may depend on what factor

20. Which of the following equation describes the action of heat on Carbonates and hydrogen carbonates

21. A salt in which there are two different atoms or cations i.e. KAl(SO4)2.12H2O is known as

22. Which of the following is not among an acid salt?

23. Name the types of salts

24. In a precipitation reaction, the two reactants must be soluble salts and one of the products must be insoluble (precipitate)True or False

25. Bases of most reactive metals such as Potassium, Sodium and Calcium are soluble in water while the rest are insoluble i.e Zinc, Aluminium, copper etc. True or Fasle

26. Mention the two key methods of preparing salts

27. Which of the following equation describes the effect of HEAT on Metal nitrates of the most reactive metal, medium reactive metal and least reactive metal

28. What is the name for the action of acids on soluble base (alkali)?

29. A salt that does not contain any replaceable hydrogen atom i.e. Na 2CO3 is known as:

30. Which of the following is not among a basic salt?

31. A salt that contains hydroxyl ion i.e. Mg(OH)Cl is known as:

32. All carbonates salts are insoluble in water except those in Group 1 metals? {Potassium, Sodium, Lithium. Yes or No