18. Acids, bases and salts Questions and Answers
Acids, bases and salts Questions1. Study the reaction below and answer the questions that followNH3 (g) + H2O (l) NH4+ (aq) + OH–(aq) (a) Define
22. Metals Questions and Answers
Metals Questions1. The following diagram represents extraction of sodium by the Down’s cell (a) Why is the anode made of graphite in this case instead
4. Air and combustion Questions and Answers
Air and combustion Questions 1. The set-up below was used to prepare a sample of oxygen gas. Study it and answer the questions that follow.
23. Organic chemistry II (alkanoic acids and alkanols) Questions and Answers
Organic chemistry II (alkanoic acids and alkanols) Questions1. A student mixed equal volumes of Ethanol and butanoic acid. He added a few drops of concentrated
9. Salts Questions and Answers
Salts Questions1. Study the flow chart below and answer the questions that follow: a) Name reagent Z. b) Describe the process which takes
5. Water and hydrogen Questions and Answers
5. Water and hydrogen Questions1. (a) Hydrogen can reduce coppers Oxide but not alluminium oxide. Explain (b) When water reacts with potassium metal the
21. Electrochemistry Questions and Answers
Electrochemistry Questions1. The setup below was used to carry out the electrolysis of Magnesium sulphate solution using inert electrodes. (i) Name a suitable pair
20. Reaction rates and reversible reactions and Answers
Reaction rates and reversible reactions1. Study the following equilibrium reaction and answer the questions that follow:- HL(aq) + H2O(l) H3O+(aq) L–(aq) Given that