Recall that sulfuric acid produces sulfates. Write word equations for the reactions when given the names of the reactants. Describe the test for hydrogen. AQA Teachit KS3: Acids and alkalis pH match up cards. AQA Teachit KS3: Acids and alkalis. AQA Teachit KS3: Acids and alkalis – prior learning. Carry out the ‘pop’ test for hydrogen produced in these reactions. TDA opportunity: Investigate the amount of hydrogen produced when acids react with different metals. O2 Neutralisation Recall that an acid is neutralised by an alkali or base to produce a salt and water. Recall that an acid is neutralised by a carbonate to produce a salt, water and carbon dioxide. Write word equations for the reactions when given the names of the reactants. Describe the test for carbon dioxide. 2 Use scientific vocabulary correctly. Write word equations using the correct terms and structure. AQA Teachit KS3: Everyday neutralisation. AQA Teachit KS4: Acid and base – making copper sulphate crystals. Investigate the neutralisation of acids by bases, alkalis and carbonates. out the limewater test for carbon dioxide. Produce solid salt crystals by evaporation of a salt solution. Household chemicals can be used here.
Describe how to crystallise a salt solution to produce solid salt. AQATeachit KS3: Taboo – acids and alkalis. 3.4.2 O3 Energy and rate of reaction Describe reactions that transfer energy to the surroundings so that temperature increases. Describe reactions that take in energy from the surroundings so the temperature decreases. 1 Use scientific vocabulary correctly. (Students do not need to recall the terms exothermic or endothermic.) Investigate the temperature changes that take place in combustion, oxidation and neutralisation reactions. Investigate the temperature changes when eg ammonium chloride dissolves in water or citric acid reacts with sodium hydrogen carbonate. O4 Increasing the rate of a chemical reaction Describe the increase in the rate of a reaction caused by increasing the: temperature concentration of reactants surface area of reactants or by adding a catalyst. 2 Use scientific vocabulary correctly. Record experimental measurements in an appropriate table using headings and units. TDA opportunity: Investigate how to make a chemical reaction go faster.
3.4.4 O7 Crude oil and fuels Recall that crude oil is a mixture of a large number of compounds. Describe the location of crude oil. Explain how useful fuels, such as petrol and diesel, are produced from crude oil by fractional distillation. 1 Use scientific vocabulary correctly. Card sort to match fractions with their uses. AQA Teachit KS4: Modelling fractional distillation. AQA Teachit KS4: Crude oil: fractional distillation (cut and paste diagrams) Compare prepared samples of fractions from crude oil. Observe a demonstration of fractional distillation of prepared oil sample. O8 Burning fuels Recall that the products of total combustion of a fuel are carbon dioxide, water vapour and oxides of nitrogen. Recall that some fuels produce sulfur dioxide when burned. Recall that partial combustion due to a limited air supply results in the production of carbon 2 Use scientific vocabulary correctly. Research and discuss the impact of burning fossil fuels on the environment. Investigate the products of combustion. Compare ‘roaring’ and ‘safety’ Bunsen burner flames. Investigate the production of acid rain (spray a large cotton wool ‘cloud’