GCSE Additional Science – Chemistry (C2) Controlled Assessment (ISA) will make up 25% of your Additional Science final grade. The other 75% will come from the 3 exam papers – modules B2, C2 and P2 (each worth 25%). Exam Content I understand some of it Atomic Structure Organisation of the periodic table Drawing an atom Charges and mass within an atom Electronic configuration of the first 20 elements Groups and periods within the periodic table Atomic mass and atomic number Isotopes Calculating relative atomic mass Covalent Components Compounds Molecular mass of compounds Covalent bonding between non-metals Sharing electrons in a covalent bond Properties of covalent compounds Comparing giant covalent structures Ionic Compounds Ionic bonding between metal and nonmetals What an ion is and how it’s formed Donating electrons in an ionic bond Properties of ionic compounds Describing giant ionic structures I understand it all but Revision need to done! revise Electrolysis The anode and cathode Ion attraction Electron transfers Balanced half equations (HT) Products from the electrolysis of brine Electroplating Acids, Bases and Salts The ions in an acid Examples of bases What are alkalis? Neutralisation Balanced (HT) word and symbol equations The molecular formulas of bases State symbols Soluble and Insoluble Salts Soluble and insoluble salts Word and balanced (HT) symbol equations for soluble and insoluble salts Precipitates Properties of ionic compounds Crystallised solid salts Rate of Reaction Defining a rate of reaction Calculating the rate of a chemical reaction Describing average and initial reaction rate Particle collisions Activation energy Collision theory Catalysts Endothermic and Exothermic Reactions Exothermic reactions Endothermic reactions Uses of endothermic and exothermic reactions The symbol for reversible reactions Chromatography and Mass Spectrometry Chromatography Paper and gas chromatography Retention factor Mass spectrometry Molecular ion peaks Polymer Plastics Monomers Comparing high and low density polyethene Thermosoftening and thermosetting plastics Modern Materials The structure of pure metals and alloys Metals as conductors of heat and electricity Relative molecular and percentage mass calculations Empirical formulae Percentage yield and mass of reactants/products How can I work on this subject? • • • • • • Make sure you understand all of the content in the table above using the revision guide. Revise all of the content above using the revision guide. Make a keyword dictionary or cue cards. Try and link keywords. Make a spider diagram linking keywords or topic areas. Practise exam questions using past papers from the AQA website. Practise skills you are not confident with such as answering long answer questions or your timings on answering questions in exam conditions. Resources you might need: GCSE AQA Additional Science Revision Guide GCSE AQA Additional Science Workbook Past exam papers Kerboodle log-in details BBC Bitesize My GCSE Science (www.my-gcsescience.com)
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