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Practical skills
Revision and exam practice for Practical skills.
8
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10
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10
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72 min
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OcrGcseChemistry A GatewayPractical skills
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8 objective pages available
Determining Reactivity Trends Using Displacement Reactions1 objectives
- Use controlled displacement reactions and safe handling of reagents to determine a reactivity trend.
Electrochemical Cells and Identifying Electrolysis Products1 objectives
- Construct and use an electrochemical cell safely, then identify products from electrolysis using suitable qualitative tests.
Chromatography and Separation Techniques1 objectives
- Use chromatography and other suitable separation techniques safely to separate and identify substances in a mixture.
Distillation for Separating Liquid Mixtures1 objectives
- Use distillation apparatus and safe heating to separate a liquid mixture while recording relevant measurements.
Identifying Ions Using Flame Tests and Qualitative Chemical Tests1 objectives
- Use flame tests and appropriate qualitative tests to identify unknown ions while handling reagents and heating equipment safely.
Titrations to Determine Unknown Concentrations1 objectives
- Carry out an acid-alkali titration accurately and safely to determine an unknown concentration.
Preparing Pure Dry Salts: A Practical Guide1 objectives
- Prepare a pure dry salt using controlled reactions, separation, evaporation and crystallisation with appropriate safety precautions.
Investigating Factors Affecting Reaction Rates1 objectives
- Measure how a selected factor affects reaction rate using controlled variables, repeated measurements and a suitable quantitative method.
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Practice preview
- If iron displaces copper from copper(II) sulfate solution, and copper displaces silver from silver nitrate solution, what is the correct order of reactivity from most to least reactive?
- Which piece of safety equipment is most important when handling various metal salt solutions in an investigation of reactivity?
- An unknown solution is tested. When sodium hydroxide solution is added, a white precipitate forms which then redissolves in excess sodium hydroxide. Which metal ion is likely present?
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