2. Which metal(s) after contact with the iron salt solution moved towards the magnet? Explain your observations. [3 marks] The magnesium responded to the magnet. This indicated that particles of iron were covering the magnesium. The magnesium is more reactive than iron, displacing the iron from the salt solution. Extension opportunities 1. Write word and symbol equations for the different reactions that have occurred: Lead [2 marks] lead + copper copper + lead nitrate sulfate → Pb(s) + CuSO4(aq) Cu(s) + Pb(NO3)2(aq) → Iron [4 marks] iron + copper sulfate copper + iron(II) sulfate → Fe(s) + CuSO4(aq) Cu(s) + FeSO4(aq) → iron + lead nitrate lead + iron(II) nitrate → Fe(s) + Pb(NO3)2(aq) Pb(s) + Fe(NO3)2(aq) → Magnesium [6 marks] magnesium + copper sulfate copper + magnesium sulfate → Mg(s) + CuSO4(aq) Cu(s) + MgSO4(aq) → magnesium + lead nitrate + magnesium nitrate → lead Mg(s) + Pb(NO3)2(aq) Pb(s) + Mg(NO3)2(aq) → magnesium + iron(II)sulfate iron + magnesium sulfate → Mg(s) + FeSO4(aq) Fe(s) + MgSO4(aq) → Document updates v0.1 July 2016 Original version DRAFT – v1 August 2016 Published on the qualification pages
2. Which metal(s) after contact with the iron salt solution moved towards the magnet? Explain your observations. [3 marks] The magnesium responded to the magnet. This indicated that particles of iron were covering the magnesium. The magnesium is more reactive than iron, displacing the iron from the salt solution. Extension opportunities 1. Write word and symbol equations for the different reactions that have occurred: Lead [2 marks] lead + copper sulfate → copper + lead nitrate Pb(s) + CuSO4(aq) → Cu(s) + Pb(NO3)2(aq) Iron [4 marks] iron + copper sulfate → copper + iron(II) sulfate Fe(s) + CuSO4(aq) → Cu(s) + FeSO4(aq) iron + lead nitrate → lead + iron(II) nitrate Fe(s) + Pb(NO3)2(aq) → Pb(s) + Fe(NO3)2(aq) Magnesium [6 marks] magnesium + copper sulfate → copper + magnesium sulfate Mg(s) + CuSO4(aq) → Cu(s) + MgSO4(aq) magnesium + lead nitrate → lead + magnesium nitrate Mg(s) + Pb(NO3)2(aq) → Pb(s) + Mg(NO3)2(aq) magnesium + iron(II)sulfate → iron + magnesium sulfate Mg(s) + FeSO4(aq) → Fe(s) + MgSO4(aq) Document updates v0.1 July 2016 Original version – DRAFT v1 August 2016 Published on the qualification pages
323617-pag-activity-chemistry-reactivity-trends-suggestion-2.docx