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G10 electricity in chemistry
1. Using Ion Kit Boards Create an ion of :- Potassium, Calcium Oxygen Chlorine Draw their respective bonding diagrams
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3. Objectives Must : Define reduction and oxidation, and write word equations. Should : Write balanced symbol equations. Could : Write balanced equations for redox reactions.
5. Experiment Take 0.5g of CuO and react with 0.5g of C using the 1 place digital balances. Tasks Record starting masses Heat using a crucible and lid on a pipe clay triangle Record your observations When reaction is complete and mixture is cool record the mass Create the balanced chemical equation Identify the oxidised and the reduced species Calculate the mass of Carbon Dioxide created How would you test for Carbon Dixoxide ?
7. Experiment Accurately mass 1.0g of CuO. Add 1.0g of C. Heat over a high heat using a crucible. Record observations. Write a balanced word and symbol equation for the reaction. Identify the oxidised and the reduced compounds.
9. Identify the Oxidised and the Reduced Molecules in ……include half ion equations Caesium + Iodine Caesium iodide Magnesium + HCl Magnesium Chloride Iron + Astatine Iron Astatide
10. Reactivity Series A more / less reactive metal will displace a more/less reactive metal. Create a results table to show the results of adding each of the following metals to a solution of the other metals… Cu / Cu Sulphate Mg / Mg Sulphate Zn / Zn Sulphate
11. Rocks Are an natimtorp source of many chemicals, especially atlmse, e.g. haematite is the ore for iron, bauxite is the ore for aluminium, and chalcopyrite for epcpor.
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13. Create a Concept Cartoon Where the more reactive metal WITH A NAME Displaces, or attacks the less reactive metal, wins and kicks the less reactive out of solution. Must: Have minimum 4 frames Should: Include balanced equations Could : Include half ion equations
14. Galvanic Cells These use the spontaneous oxidation and reduction to produce a potential difference.
15. Carbon in the reactivity Series http://www.absorblearning.com/media/attachment.action?quick=tw&att=2142
17. Writing Equations Identify using colour the oxidised and the reduced compounds in the following;
18. Thermite – a useful redox reaction A redox reaction http://www.youtube.com/watch?v=rdCsbZf1_Ng The reaction
19. Starter Which of the following reactions will occur 1. Pb displacing a solution of K+ 2. Na displacing a solution of Cs+ 3. Zn displacing a solution of Fe2+
20. Electrolysis and Galvanic Cells ELECTROLYSIS is the chemical effect of ELECTRICITY on ionic compounds, causing them to break up into SIMPLER substances, usually elements. A GALVANIC cell creates electricity because of the metals’ relative positions in the reactivity series. Similarities : Differences :
26. What is Electrolysis ? Electrolysis is the ropescs by which ionic substances are broken down intorempislsubstances using electricity. During electrolysis, atemls and gases may form at the electrodes.
28. Products of Electrolysis We can use the reactivity series including Hydrogen to predict what our products of electrolysis in aqueous solution will be.
29. Starter Fun Quiz http://www.bbc.co.uk/apps/ifl/schools/gcsebitesize/science/quizengine?quiz=add_aqa_electrolysistest&templateStyle=science
30. Objectives Review anode and cathode reactions in aqueous solution. Industrial applications of electrolysis. Homework: write 100 words on industrial applications of electrolysis , including the Chlor –Alkali industry, and purification of Cu.
31. Directions Extract salt from your ‘rock’. Make an aqueous solution. Electrolyse the solution, collecting any gases produced. Identify the gases by using an apprpopriate test. Record your results in a table. YOU MUST INCLUDE: diagram of cell, half ion equations, and a reasons why you made the products you did
Notas do Editor
Make atoms / ions with new modelling kits to review electronic configuration
Do not write down
Use oxygen with examples then extend to electrons – practical – reactivity series – draw up own – next slide into notes
Reduction of PbO using C practical – thermite demo
