14.1
Acids, alkalis and indicators
Acids and alkalis at home, litmus and red cabbage indicators, bases and alkalis, concentration and safety.
14.2
The pH scale
Universal indicator and pH meters, how acidic or alkaline, diluting, and pH in everyday life and in your body.
14.3
Neutralisation
Acid plus alkali makes a salt and water; hydrogen and hydroxide ions; and neutralisation in everyday life.
14.4
Making salts
Acids with metals, metal oxides and carbonates, the tests for hydrogen and carbon dioxide, naming salts and growing crystals.
Daily 5
Five quick diagram questions a day from this unit. The ones you get wrong come back sooner. Progress saves in this browser.
What this unit covers
Mapped to the KS3 national curriculum (Chemistry: chemical reactions (acids and alkalis)).
| Programme of study | Lesson |
|---|---|
| defining acids and alkalis in terms of neutralisation reactions | 14.1, 14.3 |
| the pH scale for measuring acidity/alkalinity; and indicators | 14.1, 14.2 |
| reactions of acids with metals to produce a salt plus hydrogen | 14.4 |
| reactions of acids with alkalis to produce a salt plus water | 14.3, 14.4 |
Next at GCSE