Chemical analysis
Downloads can take a few minutes, especially for larger files or slower connections.
Threads
Why this why now
This unit builds on pupils’ prior learning from Groups of the periodic table, where they explored the properties and reactions of elements in specific groups. It deepens their understanding by focusing on Chemical analysis, examining techniques to identify substances and their composition. As the final unit in the big question, How do we explain how substances behave?, it reinforces pupils’ understanding of how chemical properties and behaviours can be analysed and applied in real-world contexts, linking element behaviour to practical identification methods.
Prior knowledge requirements
- Ions are a form of atom that have either lost or gained electrons
- Metals form positive ions and non metals form negative ions
- Most ionic substances are soluble
- Reactions that produce insoluble solids are called precipitation reactions
- Ionic equations show only the species of a chemical reaction that have changed
Threads
Why this why now
This unit builds on pupils’ prior learning from Groups of the periodic table, where they explored the properties and reactions of elements in specific groups. It deepens their understanding by focusing on Chemical analysis, examining techniques to identify substances and their composition. As the final unit in the big question, How do we explain how substances behave?, it reinforces pupils’ understanding of how chemical properties and behaviours can be analysed and applied in real-world contexts, linking element behaviour to practical identification methods.
Prior knowledge requirements
- Ions are a form of atom that have either lost or gained electrons
- Metals form positive ions and non metals form negative ions
- Most ionic substances are soluble
- Reactions that produce insoluble solids are called precipitation reactions
- Ionic equations show only the species of a chemical reaction that have changed
Chemical analysis
This unit covers tests to identify aqueous cations and anions, including flame tests for metal ions like lithium, sodium, and copper. It explains the benefits of instrumental analysis, such as sensitivity and accuracy, and focuses on interpreting results from charts, tables, and spectroscopy data.
4 lessons in unit
slide decks, worksheet PDFs, quizzes and lesson overviews. You can select individual lessons from the Chemical analysis unit and download the resources you need, or download the entire unit now. See every unit listed in our AQA secondary chemistry curriculum and discover more of our teaching resources for AQA secondary chemistry programmes.