7 Acids, bases and salts

Practice questions on Acids, bases and salts

• Describe how you would use universal indicator solution to distinguish between a dilute ac… (4 marks, Describe)
• Explain why a solution with a pH of 2 is described as a strong acid, whereas a solution wi… (4 marks, Explain)
• State two characteristic reactions of acids with metals and describe what is observed in e… (4 marks, State)
• Describe the characteristic reactions of a base with an acid and with ammonium salts, stat… (4 marks, Describe)
• Describe what is observed when dilute hydrochloric acid is added to sodium carbonate, and … (4 marks, Describe)
• Explain why sulfur dioxide is classified as an acidic oxide. (4 marks, Explain)
• Oxides can be classified as acidic, basic, amphoteric or neutral. State the classification… (4 marks, State)
• A student wants to prepare a pure, dry sample of lead(II) sulfate. Lead(II) sulfate is an … (4 marks, Describe)
• Describe how a pure, dry sample of sodium chloride could be prepared by reacting sodium hy… (4 marks, Describe)
• Describe how a pure, dry sample of ammonium sulfate could be prepared in the laboratory st… (4 marks, Describe)
• Zinc chloride can be prepared by reacting zinc carbonate with dilute hydrochloric acid. De… (4 marks, Describe)
• Describe how a pure, dry sample of copper(II) sulfate crystals could be prepared starting … (4 marks, Describe)
• A student reacts calcium oxide with dilute hydrochloric acid and separately reacts calcium… (4 marks, Describe and Explain)
• Describe what is observed when excess sodium hydroxide solution is added to aluminium oxid… (4 marks, Describe and Explain)
• Copper(II) oxide and carbon monoxide are both oxides. Describe how each oxide behaves chem… (4 marks, Describe)