Year 9 - Science
Metal oxides and non-metal oxides
Acids and bases
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This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
Unit Summary
This unit covers acids, alkalis, and their neutralisation reactions, the pH scale, and the reactions of acids with metals and alkalis. It also examines the chemical properties of metal and non-metal oxides. Emphasis is on evaluating risks, using appropriate techniques, and making observations.
Lesson Summary
You will learn to describe the properties of metal and non-metal oxides and write equations to represent reactions of metal oxides with acid.
Key Notes
- A metal oxide consists of metal atoms bonded to oxygen atoms.
- Metal oxides are bases and can react with acids to neutralise them.
- Metal oxide + acid ⭢ metal salt + water
- A non-metal oxide consists of non-metal atoms bonded to oxygen atoms.
- Non-metal oxides in water make acidic solutions.
Vocabulary To Learn
- metal oxide: consists of metal atoms bonded to oxygen atoms.
- adding to excess: when a reactant is present in a greater amount than is necessary to completely react.
- non-metal oxide: consists of non-metal atoms bonded to oxygen atoms.
Common Mistakes To Avoid
- Pupils find it difficult to carry out a complex 3-stage practical.
3 Quick Questions (With Answers)
1. Explain the scientific idea in this lesson using two key points.
A metal oxide consists of metal atoms bonded to oxygen atoms. Metal oxides are bases and can react with acids to neutralise them.
2. Define this scientific word and use it in context. 'metal oxide'
consists of metal atoms bonded to oxygen atoms. Include the word in a full scientific explanation, not as a single label.
3. Correct this common scientific misunderstanding.
Mistake: Pupils find it difficult to carry out a complex 3-stage practical. Correction: Demonstrate the practical or do a 'follow with me' step-by-step method. If you are short on time you could just carry out the first part of the practical to produce the copper sulfate solution then stop.
More Lessons In This Unit
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