A level chemistry paper 4 2020
[PDF File]0620 y20 sm 4 - Cambridge Assessment International Education
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CHEMISTRY 0620/04 Paper 4 Theory (Extended) For examination from 2020 MARK SCHEME Maximum Mark: 80 ... non-metal because it accepts electrons / needs 3e to complete outer energy level / because it is in Group V or 5e in outer shell [1] ... dry crystals / dry between filter paper / leave in a warm place to dry; [1] (b) (i) ...
[PDF File]Cambridge International AS & A Level - GCE Guide
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CHEMISTRY 9701/41 Paper 4 A Level Structured Questions May/June 2020 MARK SCHEME Maximum Mark: 100 Published Students did not sit exam papers in the June 2020 series due to the Covid-19 global pandemic. This mark scheme is published to support teachers and students and should be read together with the question paper.
[PDF File]Cambridge O Level - GCE Guide
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specific content of the mark scheme or generic level descriptors for a question. Each question paper and mark scheme will also comply with these marking principles. GENERIC MARKING PRINCIPLE 1: Marks must be awarded in line with: • the specific content of the mark scheme or the generic level descriptors for the question
[PDF File] 2020
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General Certificate (Adv. Level) Examination, 2020 Chemist hours 09 1 50 (l), (3), (4), (5) (x) 8.314J mor IVA = 6.022 X 1023 = 6.626 x J s c 3 x 10B m l. Il 3. M MC13 Ogee M (5) 16 (2) 13 (3) 14 ... 02 - (5)0) - 2020 | (4) 41 (5) 161 $ t www.alevelapi.com . 19. MX (4) (3) (2) (5) 20. ( l) (2) 21. CH OH(I) 1 mol CH30H(l) +2H (g); = +128 kJ
[PDF File]Cambridge International AS & A Level - GCE Guide
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Each question paper and mark scheme will also comply with these marking principles. GENERIC MARKING PRINCIPLE 1: Marks must be awarded in line with: • the specific content of the mark scheme or the generic level descriptors for the question • the specific skills defined in the mark scheme or in the generic level descriptors for the question
[PDF File]Cambridge O Level
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3 UCES 2020 5070/42/M/J/20 [Turn over The equation for the reaction is shown. MnO 4 – + 5Fe2+ + 8H+ Mn2+ + 5Fe3+ + 4H 2O (i) Suggest why dilute sulfuric acid is added to the conical flask. [1] (ii) Give the formula of the ion responsible for the pink colour seen at the end-point. [1] (iii) The diagrams show parts of apparatus A with the liquid levels at the beginning and the
[PDF File]Cambridge O Level - GCE Guide
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6 UCLES 2020 5070/41/M/J/20 2 Limewater is a saturated solution of calcium hydroxide, Ca(OH) 2. A student finds the mass of calcium hydroxide in 1.00 dm3 of limewater. The student: • measures 25.0 cm 3 of limewater into a flask using a 100 cm3 measuring cylinder • adds a few drops of methyl orange indicator to the flask • places 0.100 mol / dm 3 hydrochloric acid in a burette and takes ...
[PDF File]Cambridge International AS & A Level
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9701/03 Cambridge International AS & A Level – Mark Scheme For examination SPECIMEN from 2020 UCLES 2019 Page 2 of 10 Generic Marking Principles These general marking principles must be applied by all examiners when marking candidate answers. They should be applied alongside the specific content of the mark scheme or generic level descriptors for a question.
[PDF File]Mark scheme J248/04 C4-C6 and C7 Higher November 2020
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Chemistry A (Gateway Science) J248/04: Paper 4 ... General Certificate of Secondary Education Mark Scheme for November 2020 . Oxford Cambridge and RSA Examinations . OCR (Oxford Cambridge and RSA) is a leading UK awarding body, providing a wide range of ... GCSEs, Cambridge Nationals, Cambridge Technicals, Functional Skills, Key Skills, Entry ...
[PDF File]/4'/UJ LJTrLt,{Bi.Ltb!New Syllabus))
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General Certificate of F.ducation Adv. Level Examination 2020 OlaJ q&}m6 ml@G,-8aai 10 la (!J)6!Jl.b - 10 !6lu51uiila;6fr Three hours Additional Reading Time - 10 minutes
[PDF File]Cambridge O Level - GCE Guide
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Cambridge O Level CHEMISTRY 5070/41 Paper 4 Alternative to Practical May/June 2020 MARK SCHEME Maximum Mark: 60 Published Students did not sit exam papers in the June 2020 series due to the Covid-19 global pandemic. This mark scheme is published to support teachers and students and should be read together with the question paper. It shows the ...
[PDF File]Cambridge O Level - GCE Guide
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Cambridge O Level CHEMISTRY 5070/42 Paper 4 Alternative to Practical May/June 2020 MARK SCHEME ... Students did not sit exam papers in the June 2020 series due to the Covid-19 global pandemic. This mark scheme is published to support teachers and students and should be read together with the question paper. It shows the requirements of the exam ...
[PDF File]AL/2020/02/S-l(NEW) ffJrlJ!I} @ &m@ (fce.Jt)if!J I ( IJ)@LI uff3lu4rf ...
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AL/2020/02/S-I(NEW) -3 - 12. NaCl, Na 2 S, KF ,m KCl (.'.)ZS) c5e'.l:ic.'.lt3z:D 5@cd'@0e, e'.lcS:le'.\09ci ecl@-®ii 0t!:lem> Sg@e:>@ 0 @d, (1) KF < NaCl < KC! < Na ...
[PDF File]Cambridge International AS & A Level - GCE Guide
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CHEMISTRY 9701/42 Paper 4 A Level Structured Questions October/November 2020 2 hours You must answer on the question paper. You will need: Data booklet INSTRUCTIONS Answer all questions. Use a black or dark blue pen. You may use an HB pencil for any diagrams or graphs.
[PDF File]Syllabus Cambridge O Level Chemistry 5070
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6 Cambridge O Level Chemistry 5070. Syllabus for examination in 2020 and 2021. 3. Assessment at a glance For Cambridge O Level Chemistry, candidates take three components: Paper 1 and Paper 2 and either Paper 3 or Paper 4. Paper 1: Multiple Choice 1 hour 40 compulsory multiple-choice questions. A copy of the Periodic Table is provided as part ...
[PDF File]Cambridge International AS & A Level - GCE Guide
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3 E 2020 97014120 [Turn over (d) Peroxodisulfate ions, S 2 O 8 2–, react with iodide ions, I–. S 2 O 8 2– + 2I– → 2SO 4 + I 2 The rate equation for the reaction in the absence of any catalyst is shown. rate = k[S 2 O 8 2–][I–] (i) Suggest equations for a two-step mechanism for this reaction, stating which of the two steps is the rate-determining step.
[PDF File]Cambridge O Level - GCE Guide
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5 UCLES 2020 5070/42/O/N/20 [Turn over 3 A student is provided with solution K, which is aqueous sodium hydroxide, NaOH.The student determines the concentration of K by titration. The student measures 25.0 cm3 of K and transfers it to apparatus A. 500 cm3 A (a) Name a piece of apparatus used to measure 25.0 cm3 accurately. [1] (b) Name apparatus A. [1] The student makes up the 25.0 cm3 sample ...
[PDF File]CHEMISTRY For examination from 2023
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CHEMISTRY 0620/04 Paper 4 Theory (Extended) For examination from 2023 MARK SCHEME Maximum Mark: 80 Specimen. ... They should be applied alongside the specific content of the mark scheme or generic level descriptors for a question. Each question paper and mark scheme will also comply with these marking principles. ... Page 4 of 10 6 UCLES 2020
[PDF File]Cambridge Level
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Cambridge Level CHEMISTRY 5070/04 Paper 4 Alternative to Practical For examination from 2023 MARK SCHEME Maximum Mark: 40 Specimen. 5070/04 Cambridge Level – Mark Scheme For examination SPECIMEN from 2023 Page 2 of 8 ... Page 4 of 8 6 UCLES 2020 Calculation specific guidance
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