Acids and alkalis

Acids, bases and alkalis are found in the laboratory and at home. In this topic you will learn about different reactions containing these chemicals as well as how to stay safe when you use them. 

Enjoy the song but NOTE: you should always wear googles when handling acids and bases for reasons you will discover in the lessons.

Task 2a: Read through the slides (12 to 46)

Task 3a: Read through the slides (50 to 65)

Task 3c: Make notes that:

• Define indicator

• Describe what happens to red and blue litmus paper in:

  • An acid

  • An alkali

  • A neutral substance

• Describe the limitations for using litmus paper as an indicator

• Describe how to make red cabbage indicator

• Compare red cabbage indicator and litmus paper

• Decide which is the best indicator and why

Task 4a: Read through the slides (71 to 95)

Task 4b: Make notes that:

• Describe what is produced when acids and bases react

• Define:

  • Acid

  • Alkali

  • Neutral

  • Neutralisation

• Describe how to name salts

• Complete the following word equations:

  • Magnesium hydroxide + Nitric acid → Magnesium ______ + water

  • Sodium hydroxide + Sulphuric acid → ______ sulphate + water

  • Lithium hydroxide + Hydrochloric acid → ______ _____ + water

  • ______ hydroxide + ________ acid → Potassium nitrate + water

Task 5a: Read through the slides (102 to 117)

Task  5c: Complete the exam questions and mark your answers

Task 5a: Watch the video

Task 5b: Complete these seneca learning units: