What are examples of acids and alkalis? How can you detect acids and alkalis?
Understand the Problem
The question is asking for examples of acids and alkalis, methods of detecting them, and their properties, as indicated in the text and images provided.
Answer
Acids: lemon juice, vinegar. Alkalis: baking soda, soap. Detect using litmus paper.
Acids include lemon juice and vinegar, while alkalis include baking soda and soap. Acids and alkalis can be detected using indicators like litmus paper, which turns red in acidic solutions and blue in alkaline solutions.
Answer for screen readers
Acids include lemon juice and vinegar, while alkalis include baking soda and soap. Acids and alkalis can be detected using indicators like litmus paper, which turns red in acidic solutions and blue in alkaline solutions.
More Information
Indicators like litmus paper, methyl orange, and phenolphthalein are commonly used. Natural indicators include red cabbage and beetroot juice.
Tips
A common mistake is mixing up the color changes of indicators. Remember litmus paper turns red in acids and blue in alkalis.
Sources
- Acids and Alkalis - BBC Bitesize - bbc.co.uk
- Acid or alkali? Acidic or alkaline? A litmus paper test - RSC Education - edu.rsc.org
- Acids and Alkalis | Dundee Science Centre - Interactive Learning - dundeesciencecentre.org.uk
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