In this module, you will learn:
- the properties of acids and alkalis
- some examples of acids and alkali you can find in the laboratory
Resources to help you:
- Textbook: page 113, 114, 115 and 116
- Notebook: page 29 and 30
The different properties of acids and alkalis
ACIDS
- Acids are corrosive.
- Acids taste sour.
- Acids turn blue litmus paper red.
ALKALI
- Alkalis are corrosive.
- Alkalis taste bitter.
- Alkalis turn red litmus paper blue.
- Alkalis have a soapy feel.
Watch the video
See how acids are corrosive
Source: https://www.youtube.com/watch?v=dM7Qq-SBSmQ
You can change the speed to 0.75x to make it easier to listen.
Some common examples
ACIDS
- hydrochloric acid
- sulphuric acid
- nitric acid
- ethanoic acid
- acetic acid
- citrus acid
ALKALI
- potassium hydroxide
- sodium hydroxide
- calcium hydroxide
- magnesium hydroxide
- ammonia
Watch the video
Learn about using the litmus paper to find out if items around your house is acidic or alkali
Source: https://www.youtube.com/watch?v=YrNBAq8x-2c
You can change the speed to 0.75x to make it easier to listen.
