| Hamble Ref | HT ONLY | Sep ONLY | Student Checklist Question | 1 | 2 | 3 |
| C2.3.01 |
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What is a pure substance? |
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| C2.3.01 |
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What is a formulation? |
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| C2.3.01 |
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What can be used to distinguish between pure substances and mixtures? |
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| C2.3.01 |
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What are examples of formulations? |
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| C2.3.01 |
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What is a pure substance in everyday language? |
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| C2.3.01 |
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How are formulations made? |
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| C2.3.01 |
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★ Students should be able to use melting point and boiling point data to distinguish pure from impure substances. ★ |
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| C2.3.01 |
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★ Students should be able to identify formulations given appropriate information. ★ |
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| C2.3.02 |
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How would you test if carbon dioxide was present In a reaction? |
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| C2.3.02 |
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★ Students do not need to know the names of components in proprietary products. ★ |
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| C2.3.02 |
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How would you test if Hydrogen was present In a reaction? |
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| C2.3.02 |
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How would you test if chlorine was present In a reaction? |
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| C2.3.02 |
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How would you test if Oxygen was present In a reaction? |
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| C2.3.03 |
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What can Chromatography be used to separate? |
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| C2.3.03 |
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What are the names of the two phases involved in chromatography? |
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| C2.3.03 |
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What does seperation depend on? |
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| C2.3.03 |
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How should the Rf value be expressed? |
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| C2.3.03 |
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How is the Rf value calculated? |
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| C2.3.03 |
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How do the Rf values of compounds change in different solvents? |
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| C2.3.03 |
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How can compounds be identified? |
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| C2.3.03 |
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How many spots are produced by a pure compound compared to a compound in a mixture? |
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| C2.3.03 |
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How can paper chromatography be used to separate mixtures? |
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| C2.3.03 |
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How can chromatographic methods can be used for distinguishing pure substances from impure substances? |
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| C2.3.03 |
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How can chromatograms be used to determine R values? |
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| C2.3.03 |
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★ provide answers to an appropriate number of significant figures. (MS) ★ |
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| C2.3.03 |
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How can elements and compounds be detected? |
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| C2.3.03 |
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What are the advantages of instrumental methods compared with the chemical tests? |
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| C2.3.04 |
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★ Required practical 6 - Chromatography (AT skills 1,4) ★ |
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| C2.3.05 |
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What are the different colours produced by some metal ions (cations)? |
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| C2.3.05 |
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When are some flame colours masked? |
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| C2.3.05 |
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How do carbonates react with dilute acids? |
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| C2.3.05 |
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★ Students should be able to identify species from the results of the tests in 4.8.3.1 to 4.8.3.5. ★ |
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| C2.3.05 |
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What do Halide ions produce when they react with silver nitrate solution? |
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| C2.3.05 |
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★ Flame colours of other metal ions are not required knowledge. ★ |
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| C2.3.06 |
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★ Required practical 7 - identifying ions (AT skills 1,8) ★ |
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| C2.3.06 |
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What do Sulfate ions in solution produce when they react with barium chloride in the presence of hydrochloric acid? |
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| C2.3.06 |
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What solution can be used to identify some some metal ions (cations)? |
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| C2.3.06 |
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What do solutions of aluminium, calcium and magnesium ions form? |
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| C2.3.06 |
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What happens when sodium hydroxide is added to Solutions of copper(II), iron(II) and iron(III) ions? |
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| C2.3.06 |
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Write a balanced equation for reactions that produce the insoluble hydroxides. |
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| C2.3.06 |
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★ Students are not expected to write equations for the production of sodium aluminate. ★ |
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| C2.3.06 |
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What is Flame emission spectroscopy used for? |
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| C2.3.06 |
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What can the output of a line spectrum be used for? |
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| C2.3.06 |
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★ Students should be able to interpret an instrumental result given appropriate data in chart or tabular form, when accompanied by a reference set in the same form, limited to flame emission spectroscopy. ★ |
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