CH237: Describe why an ion test must be unique

CH238: Identify the flame colours for different cations

CH239: Identify the precipitate colours for different cations

CH240: Identify the test for ammonia

CH241: Describe the test for carbonates, sulfates and halides

CH242: Core Practical: Investigating Ions

CH243: Explain the advantages of instrumental analysis

CH244: Explain why flame photometry is more accurate than flame tests