[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-207387-105":59,"doc-detail-207387-en":124},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":117,"head_meta":119,"extra_data":121,"updated_unix":123},105,"en","gcse-chemistry-higher-tier-paper-1-14-may-2020","GCSE Chemistry - Higher Tier Paper 1 - 14 May 2020","","GCSE Chemistry Higher Tier Paper 1 assesses topics including structure and bonding, metals and the reactivity series, isotopes and relative atomic mass, and reactions involving silver iodide. Learners answer questions that require selecting correct statements, comparing bonding and structure across compounds, explaining experimental observations, planning investigations using dilute hydrochloric acid, and performing isotope calculations. The paper also applies conservation of mass, suggests separation and purification steps, and calculates percentage atom economy using given relative formula masses.",{"@graph":69,"@context":116},[70,84,99],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":20,"@type":76,"position":81},"https://docshare.wps.com/document/exam/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/gcse-chemistry-higher-tier-paper-1-14-may-2020/207387/",{"url":83,"name":65,"@type":85,"author":86,"headline":65,"publisher":89,"fileFormat":92,"inLanguage":63,"description":67,"dateModified":93,"datePublished":93,"encodingFormat":92,"isAccessibleForFree":94,"interactionStatistic":95},"DigitalDocument",{"name":87,"@type":88},"Himbo","Person",{"url":74,"name":90,"@type":91},"DocShare","Organization","application/pdf","2026-09-05",true,{"@type":96,"interactionType":97,"userInteractionCount":4},"InteractionCounter",{"@type":98},"ViewAction",{"@type":100,"mainEntity":101},"FAQPage",[102,108,112],{"name":103,"@type":104,"acceptedAnswer":105},"Which topics are covered in GCSE Chemistry Higher Tier Paper 1?","Question",{"text":106,"@type":107},"The paper covers structure and bonding, metals and the reactivity series, identifying metals using dilute hydrochloric acid, isotopes and relative atomic mass, and silver iodide reactions including conservation of mass and atom economy.","Answer",{"name":109,"@type":104,"acceptedAnswer":110},"How is reactivity compared in the question about silver and copper?",{"text":111,"@type":107},"Students explain how observations from adding copper to silver nitrate solution show silver is less reactive than copper, focusing on changes such as crystal formation and solution colour change.",{"name":113,"@type":104,"acceptedAnswer":114},"What calculations are required in the silver iodide section?",{"text":115,"@type":107},"Students calculate the percentage atom economy for producing silver iodide using the provided reaction equation and given relative formula masses, and they also use results to explain conservation of mass.","https://schema.org",{"og:url":83,"og:type":118,"og:title":65,"og:site_name":90,"og:description":67},"article",{"robots":120,"canonical":83},"index,follow",{"doc_id":122,"site_id":62},207387,1788599368,{"code":4,"msg":5,"data":125},{"doc_id":122,"user_id":126,"nickname":87,"user_avatar":127,"doc_module":4,"category_id":19,"category_name":20,"doc_title":65,"doc_description":67,"doc_content":128,"file_id":129,"file_url":130,"file_type":131,"file_size":132,"view_count":4,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":133,"language":134,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":135,"faqs":136,"seo_title":137,"seo_description":67,"update_tm":123,"read_time":138},687197100911,"https://ap-avatar.wpscdn.com/avatar/a000239b6f1da00475?x-image-process=image/resize,m_fixed,w_180,h_180&k=1785132997149421697","| Please write clearly in block capitals. |  |  |  |\n| --- | --- | --- | --- |\n| Centre number |  | Candidate number |  |\n| Surname  \u003Cbr>Forename(s)  \u003Cbr>Candidate signature  \u003Cbr>I declare this is my own work. |  |  |  |\n\nGCSE  \nCHEMISTRY  \nHigher Tier Paper 1  \nH  \nThursday 14 May 2020 Morning Time allowed: 1 hour 45 minutes  \nMaterials  \nFor this paper you must have:  \n• a ruler  \n• a calculator  \n• the periodic table (enclosed) .  \nInstructions  \n• Use black ink or black ball-point pen.  \n• Pencil should only be used for drawing.  \n• Fill in the boxes at the top of this page.  \n• Answer all questions in the spaces provided. Do not write outside the box around each page or on blank pages.  \n• If you need extra space for your answer(s), use the lined pages at the end of this book. Write the question number against your answer(s) .  \n• Do all rough work in this book. Cross through any work you do not want to be marked.  \n• In all calculations, show clearly how you work out your answer.  \nInformation  \n• The maximum mark for this paper is 100.  \n• The marks for questions are shown in brackets.  \n• You are expected to use a calculator where appropriate.  \n• You are reminded of the need for good English and clear presentation in your answers.  \n\n| For Examiner’s Use |  |\n| --- | --- |\n| Question | Mark |\n| 1 |  |\n| 2 |  |\n| 3 |  |\n| 4 |  |\n| 5 |  |\n| 6 |  |\n| 7 |  |\n| 8 |  |\n| 9 |  |\n| TOTAL |  |\n\n\n| \u003Cbr> 0  1  This question is about structure and bonding.\u003Cbr> 0  1  .  1 Which two substances have intermolecular forces between particles? |  |  |\n| --- | --- | --- |\n| Tick ( 􀀹 ) two boxes.\u003Cbr>Diamond\u003Cbr>Magnesium\u003Cbr>Poly(ethene)\u003Cbr>Sodium chloride\u003Cbr>Water | | [2 marks] |\n|  0  1  .  2 Table 1 shows the structures of three compounds. |  |  |\n| Table 1 |  | Diagrams not to scale |\n| Compound Structure Carbon dioxide Magnesium oxide Silicon dioxide |  |  |\n\nbox  \nCompare the structure and bonding of the three compounds:  \n• carbon dioxide  \n• magnesium oxide  \n• silicon dioxide.  \n[6 marks]  \n\n|  |\n| --- |\n|  |\n|  |\n|  |\n|  |\n|  |\n|  |\n|  |\n|  |\n|  |\n|  |\n|  |\n|  |\n\nTurn over for the next question  \noutside the box  \n8  \n\n| \u003Cbr> 0  2  This question is about metals and the reactivity series.\u003Cbr> 0  2  .  1 Which two statements are properties of most transition metals? |  |  |\n| --- | --- | --- |\n| Tick ( 􀀹 ) two boxes.\u003Cbr>They are soft metals.\u003Cbr>They form colourless compounds.\u003Cbr>They form ions with different charges.\u003Cbr>They have high melting points.\u003Cbr>They have low densities. | | [2 marks] |\n| \u003Cbr> 0  2  .  2  A student added copper metal to colourless silver nitrate solution.\u003Cbr>The student observed:\u003Cbr>• pale grey crystals forming\u003Cbr>• the solution turning blue.\u003Cbr>Explain how these observations show that silver is less reactive than copper.\u003Cbr>[3 marks]\u003Cbr> |  |  |\n\nbox  \n 0  2  .  3 A student is given three metals, X, Y and Z to identify.  \nThe metals are magnesium, iron and copper.  \nPlan an investigation to identify the three metals by comparing their reactions with dilute hydrochloric acid.  \nYour plan should give valid results.  \n[4 marks]  \n\n|  |\n| --- |\n|  |\n|  |\n|  |\n|  |\n|  |\n|  |\n|  |\n|  |\n|  |\n|  |\n\nQuestion 2 continues on the next page  \noutside the box  \n\n|  |  |  |  |  | Metal M has two isotopes. | outside the\u003Cbr>box |  |\n| --- | --- | --- | --- | --- | --- | --- | --- |\n|  | 0 | 2 | . | 4 |  |  |  |\n| Table 2 shows the mass numbers and percentage abundances of the isotopes.\u003Cbr>Table 2\u003Cbr>Mass number Percentage abundance (%) 203 30 205 70\u003Cbr>Calculate the relative atomic mass (Ar) of metal M.\u003Cbr>Give your answer to 1 decimal place.\u003Cbr>[2 marks]\u003Cbr>\u003Cbr>Relative atomic mass ( 1 decimal place) =   |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  | 11 |\n|  |  |  |  |  |  |  |  |\n\nTurn over for the next question  \nDO NOT WRITE ON THIS PAGE ANSWER IN THE SPACES PROVIDED  \noutside the box  \n0  3  This question is about silver iodide.  \nSilver iodide is produced in the reaction between silver nitrate solution and sodium iodide","cbCaimBL8mcXQSbY","https://ap.wps.com/l/cbCaimBL8mcXQSbY","pdf",1453099,32,"English","# Structure and bonding\n## Intermolecular forces and compound comparison\n# Metals and the reactivity series\n## Transition metal properties and reactivity explanation\n# Identifying metals using dilute hydrochloric acid\n## Reaction-based investigation plan\n# Isotopes and relative atomic mass\n## Calculating Ar from mass numbers and abundances\n# Silver iodide reactions\n## Conservation of mass and separation/purification\n## Impurities removed, reasons for warming, atom economy calculation","[{\"question\":\"Which topics are covered in GCSE Chemistry Higher Tier Paper 1?\",\"answer\":\"The paper covers structure and bonding, metals and the reactivity series, identifying metals using dilute hydrochloric acid, isotopes and relative atomic mass, and silver iodide reactions including conservation of mass and atom economy.\"},{\"question\":\"How is reactivity compared in the question about silver and copper?\",\"answer\":\"Students explain how observations from adding copper to silver nitrate solution show silver is less reactive than copper, focusing on changes such as crystal formation and solution colour change.\"},{\"question\":\"What calculations are required in the silver iodide section?\",\"answer\":\"Students calculate the percentage atom economy for producing silver iodide using the provided reaction equation and given relative formula masses, and they also use results to explain conservation of mass.\"}]","GCSE Chemistry - Higher Tier Paper 1 - 14 May 2020 | PDF",81]