Questions: Chemical changes: reactivity, acids and electrolysis
Pick a question type. Each time you get new numbers. Free ones are marked free.
The reactivity series and extracting metals
- Reactivity order from experiment dataChoose, 1 mark, free
- Reactivity order from displacement resultsChoose, 1 mark, free
- Will one metal displace anotherChoose, 1 mark, free
- Products of a metal displacementChoose, 1 mark, free
- Metals with water and with acidChoose, 1 mark, free
- Oxidised or reduced (oxygen)Choose, 1 mark, free
- How a metal is extractedChoose, 1 mark, free
- Balancing an extraction equationComplete, 2 marks, free
- Mass of metal in an oxideCalculate, 3 marks, free
Redox with electrons, and metals with acids
- Oxidised or reduced (electrons)Choose, 2 marks, free, Higher tier
- Ionic equation for a displacementChoose, 1 mark, free, Higher tier
- Spotting the spectator ionChoose, 1 mark, free, Higher tier
- Metal and acid: products and the gas testChoose, 2 marks, free
- Balancing a metal and acid equationComplete, 2 marks, free
Acids, alkalis and making salts
- Naming the salt from an acid and a baseChoose, 1 mark, Plus
- Choosing reactants to make a saltChoose, 1 mark, Plus
- Formula of a salt from its ionsChoose, 1 mark, Plus
- Products of acid and base reactionsChoose, 1 mark, Plus
- Balancing a neutralisation equationComplete, 2 marks, Plus
- Reading the pH scaleChoose, 2 marks, Plus
- The ionic equation for neutralisationChoose, 1 mark, Plus
- Neutralisation volumes in proportionCalculate, 4 marks, Plus
- Required practical: steps for making a saltChoose, 1 mark, Plus
- Required practical: why each step is doneExplain, 1 mark, Plus
- Required practical: mean mass of crystalsDetermine, 3 marks, Plus
- Making pure, dry copper sulfate crystals (6 marks)Describe, 6 marks, Plus
Strong and weak acids, and titrations
- Strong and weak acidsChoose, 2 marks, Plus, Higher tier
- Concentrated or dilute, strong or weakChoose, 1 mark, Plus, Higher tier
- pH and hydrogen ion concentrationCalculate, 2 marks, Plus, Higher tier
- New pH after a change in concentrationCalculate, 2 marks, Plus, Higher tier
- Required practical: titration methodChoose, 1 mark, Plus, Chemistry only
- Required practical: titres and the mean titreCalculate, 3 marks, Plus, Chemistry only
- Concentration from a titrationCalculate, 4 marks, Plus, Chemistry only, Higher tier
- Predicting a titreCalculate, 3 marks, Plus, Chemistry only, Higher tier
- mol/dm³ and g/dm³Calculate, 3 marks, Plus, Chemistry only, Higher tier
Electrolysis of melts and solutions
- Products of electrolysing a molten compoundChoose, 2 marks, Plus
- Products of electrolysing a solutionChoose, 2 marks, Plus
- Which solution gives these productsChoose, 1 mark, Plus
- Ions, electrodes and electrolytesChoose, 1 mark, Plus
- What is left in the solutionChoose, 1 mark, Plus
Aluminium, half equations and the electrolysis practical
- Extracting aluminiumChoose, 1 mark, Plus
- Aluminium from bauxiteCalculate, 5 marks, Plus
- Half equations at the electrodesChoose, 1 mark, Plus, Higher tier
- Mass of product from electrolysisCalculate, 3 marks, Plus, Higher tier
- Required practical: testing the gases from electrolysisChoose, 1 mark, Plus
- Required practical: variables in electrolysisChoose, 1 mark, Plus
- Required practical: copper electrodes and currentDetermine, 3 marks, Plus
- Electrolysis of brine or aluminium oxide (6 marks)Explain, 6 marks, Plus
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