Part 5- Chemistry Paper 2 Rate and Extent of Chemical Change Combined Science Application
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1 Part 5- Chemistry Paper 2 Rate and Extent of Chemical Change Combined Science Application How bonding and structure are related to the properties of substances A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes Chemical bonds, ionic, covalent and metallic Bonding Structure, and the Properties of Matter Use of amount of substance in relation to masses of pure substances Quantitative Chemistry Yield and atom economy of chemical reactions (Triple) Using concentrations of solutions in mol/dm3 (Triple) Chemical measurements, conservation of mass and the quantitative interpretation The periodic table Atomic Structure and the Periodic Table Paper 1 Chemical Changes Reactions of acids Reactivity of metals Reversible reactions and dynamic equilibrium The Rate and Extent of Chemical Change Chemistry Paper 2 Energy Changes Chemical cells and fuel cells (Triple) Exothermic and endothermic reactions Electrolysis Rate of reaction Reactions of alkenes and alcohols (Triple) Carbon compounds as fuels and feedstock Organic Chemistry Synthetic and naturally occurring polymers (Triple) Purity, formulations and chromatograph & ID of gases Chemical Analysis Identification of ions by chemical and spectroscopic means (Triple) Chemistry of the Atmosphere Common atmospheric pollutants and their sources The composition and evolution of the Earth's atmosphere Carbon dioxide and methane as greenhouse gases Using Resources Life cycle assessment and recycling Using materials (Triple) Using the Earth's resources and obtaining potable water The Haber process and the use of NPK fertilisers (Triple)
2 AQA TRILOGY Chemistry (8464) from 2016 Topics T5.7 Organic chemistry Topic Student Checklist R A G Describe what crude oil is and where it comes from, including the basic composition of crude oil and the general chemical formula for the alkanes State the names of the first four members of the alkanes and recognise substances as alkanes from their formulae Describe the process of fractional distillation, state the names and uses of fuels that are produced from crude oil by fractional distillation Describe trends in the properties of hydrocarbons, including boiling point, viscosity and flammability and explain how their properties influence how they are used as fuels Describe and write balanced chemical equations for the complete combustion of hydrocarbon fuels Describe the process of cracking and state that the products of cracking include alkanes and alkenes and describe the test for alkenes Balance chemical equations as examples of cracking when given the formulae of the reactants and products Explain why cracking is useful and why modern life depends on the uses of hydrocarbons Carbon compounds as fuels and feedstock
3 A. Crude Oil, Hydrocarbons and Alkanes 1. What is the formula of an alkane with eight hydrogens? Draw its structural formula (2) 2. Describe what crude oil is, how it is made and what it is made of. (6) 3. Give the name and formulae for the first two alkanes in the homologous series. (2) B. Fractional Distillation And Petrochemicals 1. Name three of the fractions separated in fractional distillation (3) 2. Explain how fractional distillation separates these fractions. (4) 3. Why are there so many natural and synthetic carbon compounds? (1)
4 4. Name two materials produced by the petrochemical industry. (2) C. Properties of Hydrocarbons 1. Hydrocarbons in crude oil vary in their size. Describe how increasing molecular size of hydrocarbons alters the boiling point, viscosity and flammability of hydrocarbons. (3) 2. Describe what happens to the carbon and hydrogen atoms in a hydrocarbon during combustion. (3) 3. Write the balanced symbol equation for the complete combustion of pentane gas C5H12 (3)
5 D. Cracking and Alkenes 1. Name two types of cracking and explain why scientists might want to crack hydrocarbons. (4) 2. The cracking of hydrocarbons can make alkanes and one other type of chemical. Name this chemical and describe a chemical test that could be used to identify between this chemical and the alkane. Give the positive test result as part of your answer. (3) 3. A scientist carried out an experiment to crack a hydrocarbon, here is the symbol equation for the reaction. The chemical that was cracked was C12H26. One of the products was C2H4., hat is the formula of the other product? (2)
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