[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-detail-207956-en":3,"doc-seo-207956-105":30,"detail-sidebar-cat-0-en-105":91},{"code":4,"msg":5,"data":6},0,"success",{"doc_id":7,"user_id":8,"nickname":9,"user_avatar":10,"doc_module":4,"category_id":11,"category_name":12,"doc_title":13,"doc_description":14,"doc_content":15,"file_id":16,"file_url":17,"file_type":18,"file_size":19,"view_count":20,"is_deleted":4,"is_public":20,"is_downloadable":20,"audit_status":20,"page_count":21,"language":22,"language_code":23,"site_id":24,"html_lang":23,"table_of_contents":25,"faqs":26,"seo_title":27,"seo_description":14,"update_tm":28,"read_time":29},207956,1099514068365,"Aurelia","https://ap-avatar.wpscdn.com/avatar/10000253d8d9f28188e?_k=1776742907772140068",4,"Exam","WJEC GCSE Chemistry - Combined Science - Metals & Their Extraction","Revision notes for WJEC GCSE Chemistry (Combined Science) focused on metals and their extraction. Covers metal ores, why useful metals occur as metal compounds, and how extraction often involves reduction processes where oxygen is removed. Explains native metals and how reactivity and placement in the reactivity series determine extraction methods, including electrolysis and reduction with carbon. Includes key examples, displacement reactions, and a thermite reaction with relevant equations.","Head to www.savemyexams. com for more awesome resources  \n WJEC GCSE Chemistry: Combined Science  \nMetals & Their Extraction  \nContents  \n Metal Ores  \n Native Metals  Metal Reactivity  \n Metal Displacement Reactions  Oxidation & Reduction  \n Extraction of Iron  \n Electrolysis of Molten Ionic Compounds  Oxidation & Reduction Using Electrons  Extraction of Aluminium  \n Properties of Metals  Transition Metals  Alloys  \n FactorsAyecting Extraction Processes  \nPage 1 of 35  \n© 2015 − 2025 Save My Exams, Ltd. · Revision Notes, Topic Questions, Past Papers  \nYour notes  \nHead to www.savemyexams. com for more awesome resources  \nMetal Ores  \nMetal Ores  \n The Earth’s crust contains metals and metal compounds such as gold, copper, iron oxide and aluminium oxide  \nPie chart to show the abundance of diyerent elements in the Earth's crust  \nAluminium is the most abundant metal in the Earth 's crust. Itisa reactive metal so will form compounds  \nwith other elements  \n Useful metals are often chemically combined with other substances forming ores  \n A metal ore is a rock that contains enough of the metal to make it worthwhile extracting  \n They have to be extracted from their ores through processes such as electrolysis, using a blast furnace or by reacting with a more reactive material  \n In many cases, the ore is an oxide of the metal, therefore the extraction of these metals is a reduction process since oxygen is being removed  \nTable of Common Metal Ores  \n\n| Name of Ore | Metal Compound | Formula of metal compound in ore |\n| --- | --- | --- |\n\nPage 2 of 35  \n© 2015 − 2025 Save My Exams, Ltd. · Revision Notes, Topic Questions, Past Papers  \nYour notes  \nHead to www.savemyexams. com for more awesome resources  \n\n| Haematite | Iron oxide | Fe2O3 |\n| --- | --- | --- |\n| Bauxite | Aluminium oxide | Al2O3 |\n| Rock salt | Sodium chloride | NaCl |\n| Rutile | Titanium dioxide | TiO2 |\n\nPage 3 of 35  \n© 2015 − 2025 Save My Exams, Ltd. · Revision Notes, Topic Questions, Past Papers  \nYour notes  \nHead to www.savemyexams. com for more awesome resources  \nNative Metals  \nNative Metals  \nWhat are native metals?  \n Unreactive metals do not have to be extracted chemically asthey are often found asthe uncombined element  \n This occurs as they do not easily react with other substances due to their chemical stability  \n They are known as native metals and examples include gold and silver which can both be mined directly from the Earth’s crust  \n The position of the metal on the reactivity series in}uences the method of extraction  \n Those metals placed higher up on the series (above carbon) have to be extracted using electrolysis  \n Metals lower down on the series can be extracted by heating with carbon in a reduction reaction The Extraction Method Depends on the Position of a Metal in the Reactivity Series  \n\n| Metal | Method of Extraction |\n| --- | --- |\n| Most reactive |  |\n| Potassium | Extracted by electrolysis of molten chloride or molten oxide Large amount of electricity required so expensive process |\n| Sodium |  |\n| Lithium |  |\n| Calcium |  |\n| Magnesium |  |\n| Aluminium |  |\n| Carbon |  |\n| Zinc | Extracted by heating with reducing agent such as carbon or carbon\u003Cbr>monoxide |\n| Iron |  |\n\nPage 4 of 35  \n© 2015 − 2025 Save My Exams, Ltd. · Revision Notes, Topic Questions, Past Papers  \nYour notes  \nHead to www.savemyexams. com for more awesome resources  \n\n| Hydrogen |  |\n| --- | --- |\n| Copper | Found as pure elements (copper may have to be extracted from it 's ore by heating with carbon or hydrogen) |\n| Silver |  |\n| Gold |  |\n| Least reactive |  |\n\nPage 5 of 35  \n© 2015 − 2025 Save My Exams, Ltd. · Revision Notes, Topic Questions, Past Papers  \nYour notes  \nHead to www.savemyexams. com for more awesome resources  \nMetal Reactivity  \nMetal Reactivity  \nThe Reactivity Series  \n Based on how they react with other substances, a reactivity series can be produced in which the metals are placed in order of their reactivity  \n Metal atoms form posit","cbCaikkIyje0aCsT","https://ap.wps.com/l/cbCaikkIyje0aCsT","pdf",4417039,1,35,"English","en",105,"# Metal Ores\n## Native Metals\n## Metal Reactivity\n## Metal Displacement Reactions\n## Extraction of Iron\n## Extraction of Aluminium\n## Electrolysis of Molten Ionic Compounds\n## Oxidation & Reduction Using Electrons\n## Thermite\n## Factors Affecting Extraction Processes","[{\"question\":\"How do you define a metal ore in GCSE Chemistry?\",\"answer\":\"A metal ore is a rock that contains enough metal to make extraction worthwhile. Metals are often found chemically combined with other substances in these ores.\"},{\"question\":\"Why does the reactivity series affect the method of extracting a metal?\",\"answer\":\"A metal’s position on the reactivity series determines how easily it forms ions and reacts. More reactive metals usually require electrolysis, while less reactive metals can be extracted by heating with reducing agents like carbon.\"},{\"question\":\"What is a displacement reaction in the context of metal extraction?\",\"answer\":\"A displacement reaction occurs when a more reactive metal displaces a less reactive metal from its compound. For example, zinc can reduce copper(II) oxide when heated.\"}]","WJEC GCSE Chemistry - Combined Science - Metals & Their Extraction | PDF",1788601910,88,{"code":4,"msg":31,"data":32},"ok",{"site_id":24,"language":23,"slug":33,"title":13,"keywords":34,"description":14,"schema_data":35,"social_meta":86,"head_meta":88,"extra_data":90,"updated_unix":28},"wjec-gcse-chemistry-combined-science-metals-their-extraction","",{"@graph":36,"@context":85},[37,53,68],{"@type":38,"itemListElement":39},"BreadcrumbList",[40,44,48,51],{"item":41,"name":42,"@type":43,"position":20},"https://docshare.wps.com","Home","ListItem",{"item":45,"name":46,"@type":43,"position":47},"https://docshare.wps.com/document/","Document",2,{"item":49,"name":12,"@type":43,"position":50},"https://docshare.wps.com/document/exam/",3,{"item":52,"name":13,"@type":43,"position":11},"https://docshare.wps.com/document/wjec-gcse-chemistry-combined-science-metals-their-extraction/207956/",{"url":52,"name":13,"@type":54,"author":55,"headline":13,"publisher":57,"fileFormat":60,"inLanguage":23,"description":14,"dateModified":61,"datePublished":62,"encodingFormat":60,"isAccessibleForFree":63,"interactionStatistic":64},"DigitalDocument",{"name":9,"@type":56},"Person",{"url":41,"name":58,"@type":59},"DocShare","Organization","application/pdf","2026-09-06","2026-09-05",true,{"@type":65,"interactionType":66,"userInteractionCount":20},"InteractionCounter",{"@type":67},"ViewAction",{"@type":69,"mainEntity":70},"FAQPage",[71,77,81],{"name":72,"@type":73,"acceptedAnswer":74},"How do you define a metal ore in GCSE Chemistry?","Question",{"text":75,"@type":76},"A metal ore is a rock that contains enough metal to make extraction worthwhile. Metals are often found chemically combined with other substances in these ores.","Answer",{"name":78,"@type":73,"acceptedAnswer":79},"Why does the reactivity series affect the method of extracting a metal?",{"text":80,"@type":76},"A metal’s position on the reactivity series determines how easily it forms ions and reacts. More reactive metals usually require electrolysis, while less reactive metals can be extracted by heating with reducing agents like carbon.",{"name":82,"@type":73,"acceptedAnswer":83},"What is a displacement reaction in the context of metal extraction?",{"text":84,"@type":76},"A displacement reaction occurs when a more reactive metal displaces a less reactive metal from its compound. 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