[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-detail-207962-en":3,"doc-seo-207962-105":30,"detail-sidebar-cat-0-en-105":90},{"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":4,"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},207962,687207020761,"Oliver Hayes","https://ap-avatar.wpscdn.com/davatar_155a257f0dc6eb9ab79c44ca47cae57d",4,"Exam","AQA GCSE Chemistry - Electrolysis","Comprehensive GCSE Chemistry notes on electrolysis, covering the overall process and how electrolytic cells work. Explains how electrolytes conduct electricity in molten or dissolved states, and why covalent compounds do not undergo electrolysis. Details electrode functions, ion movement, and electron flow direction using exam-focused mnemonics. Includes guidance for predicting products of molten ionic compounds and a worked example using lead(II) bromide. Also covers using electrolysis for metal extraction based on the reactivity series and discusses why electrolysis is energy-intensive and costly.","AQA GCSE Chemistry  \nElectrolysis  \nContents  \n The Process of Electrolysis  \n Electrolysis of Molten Ionic Compounds  \n Using Electrolysis to Extract Metals  \n Electrolysis of Aqueous Solutions  \n Required Practical: Electrolysis of Aqueous Solutions  Half Equations in Electrolysis  \nYour notes  \nThe Process of Electrolysis  \nElectrolytic cells  \n When an electric current is passed through a molten ionic compound the compound decomposes or breaks down  \n The process also occurs for aqueous solutions of ionic compounds  \n Liquids and solutions that are able to conduct electricity are called electrolytes  \n Covalent compounds cannot conduct electricity hence they do not undergo electrolysis  \n An electrolytic cell is the name given to the set-up used in electrolysis and which consists of the following:  \n Electrode: a rod of metal or graphite through which an electric current flows into or out of an electrolyte  \n Electrolyte: ionic compound in molten or dissolved solution that conducts the electricity  \n Anode: the positive electrode of an electrolysis cell  \n Anion: negatively charged ion which is attracted to the anode  \n Cathode: the negative electrode of an electrolysis cell  \n Cation: positively charged ion which is attracted to the cathode An electrolytic cell  \nYour notes  \nThe basic set-up of an electrolysis cell  \nExaminer Tipsand Tricks  \nUse the PANIC mnemonic to remember which electrode is the positive and which is the negative: Positive (is)Anode Negative Is Cathode.  \nElectrical conductivity of ionic compounds  \nElectrical Conductivity of Ionic Compounds  \n Ionic compounds in the solid state cannot conduct electricity since they have no free ions that can move and carry the charge  \n The ions must be able to move and can only do so in the molten state or when dissolved in a solution, usually aqueous  \n When the cell isturned on and an electric current is passed through an electrolyte the ions in the solution start to move towards the electrodes  \nParticles in solid and molten / solution in ionic compounds  \nYour notes  \nParticles in ionic compounds are in fixed position in the solid state but can move around when molten orin solution  \nExaminer Tipsand Tricks  \nCations are attracted to the cathode and anions are attracted to the anode. Electron flow in electrochemistry occurs in alphabetical order as electrons flow from the anode to the cathode.  \nMovement of ions  \nMovement of ions during electrolysis  \n During electrolysis the electrons move from the power supply towards the cathode  \n Electron flow in electrochemistry thus occurs in alphabetical order as electrons flow from the anode to the cathode  \n Positive ions within the electrolyte migrate towards the negatively charged electrode which is the cathode  \n Negative ions within the electrolyte migrate towards the positively charged electrode which is the anode  \nThe flow of electrons and ions in electrolysis  \nYour notes  \nDiagram showing the direction of movement of electrons and ions in the electrolysis of  \nNaCl  \nExaminer Tipsand Tricks  \nWhen a metal conducts it isthe electrons that are moving through the metal. When a salt solution conducts it isthe ions in the solution that move towards the electrodes while carrying the electrons.  \nYour notes  \nElectrolysis of Molten Ionic Compounds  \nElectrolysis of simple ionic compounds What is produced atthe anode and cathode?  \n Lead(II) bromide is a binary ionic compound meaning that it is a compound consisting of just two elements joined together by ionic bonding  \n When these compounds are heated beyond their melting point, they become molten and can conduct electricity as their ions can move freely and carry the charge  \n These compounds undergo electrolysis and always produce their corresponding element  \n To predict the products of any binary molten compound first identify the ions present  \n The positive ion will migrate towards the cathode and the negative ion will migrate towards the anode  \n Therefore ","cbCaioterC4fQt1i","https://ap.wps.com/l/cbCaioterC4fQt1i","pdf",2253582,1,20,"English","en",105,"# The Process of Electrolysis\n## Electrolytic cells\n# Electrolysis of Molten Ionic Compounds\n## Predicting products at the anode and cathode\n## Electrolysis of molten lead(II) bromide\n# Using Electrolysis to Extract Metals\n## Choosing methods using the reactivity series\n# Electrolysis of Aqueous Solutions\n## Required Practical: Electrolysis of Aqueous Solutions\n# Half Equations in Electrolysis","[{\"question\":\"What is electrolysis and what conditions are needed for it to happen?\",\"answer\":\"Electrolysis is the decomposition of an ionic compound when an electric current passes through it. It occurs when the ionic compound is molten or dissolved in solution so ions can move and carry charge.\"},{\"question\":\"What are the anode and cathode in an electrolytic cell?\",\"answer\":\"The anode is the positive electrode and the cathode is the negative electrode. Anions are attracted to the anode and cations are attracted to the cathode during electrolysis.\"},{\"question\":\"How can you predict products during electrolysis of a molten ionic compound?\",\"answer\":\"Identify the ions present first. Positive ions migrate to the cathode where the metal forms, while negative ions migrate to the anode where the non-metal forms.\"}]","AQA GCSE Chemistry - Electrolysis | PDF",1788601922,50,{"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":85,"head_meta":87,"extra_data":89,"updated_unix":28},"aqa-gcse-chemistry-electrolysis","",{"@graph":36,"@context":84},[37,53,67],{"@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/aqa-gcse-chemistry-electrolysis/207962/",{"url":52,"name":13,"@type":54,"author":55,"headline":13,"publisher":57,"fileFormat":60,"inLanguage":23,"description":14,"dateModified":61,"datePublished":61,"encodingFormat":60,"isAccessibleForFree":62,"interactionStatistic":63},"DigitalDocument",{"name":9,"@type":56},"Person",{"url":41,"name":58,"@type":59},"DocShare","Organization","application/pdf","2026-09-05",true,{"@type":64,"interactionType":65,"userInteractionCount":4},"InteractionCounter",{"@type":66},"ViewAction",{"@type":68,"mainEntity":69},"FAQPage",[70,76,80],{"name":71,"@type":72,"acceptedAnswer":73},"What is electrolysis and what conditions are needed for it to happen?","Question",{"text":74,"@type":75},"Electrolysis is the decomposition of an ionic compound when an electric current passes through it. It occurs when the ionic compound is molten or dissolved in solution so ions can move and carry charge.","Answer",{"name":77,"@type":72,"acceptedAnswer":78},"What are the anode and cathode in an electrolytic cell?",{"text":79,"@type":75},"The anode is the positive electrode and the cathode is the negative electrode. Anions are attracted to the anode and cations are attracted to the cathode during electrolysis.",{"name":81,"@type":72,"acceptedAnswer":82},"How can you predict products during electrolysis of a molten ionic compound?",{"text":83,"@type":75},"Identify the ions present first. Positive ions migrate to the cathode where the metal forms, while negative ions migrate to the anode where the non-metal forms.","https://schema.org",{"og:url":52,"og:type":86,"og:title":13,"og:site_name":58,"og:description":14},"article",{"robots":88,"canonical":52},"index,follow",{"doc_id":7,"site_id":24},{"code":4,"msg":5,"data":91},[92,96,100,103,108,112,117,122,126,129,133],{"id":20,"doc_module":4,"doc_module_name":46,"category_name":93,"show_sort_weight":94,"slug":95},"Story & Novel",90,"story-novel",{"id":47,"doc_module":4,"doc_module_name":46,"category_name":97,"show_sort_weight":98,"slug":99},"Literature",80,"literature",{"id":11,"doc_module":4,"doc_module_name":46,"category_name":12,"show_sort_weight":101,"slug":102},70,"exam",{"id":104,"doc_module":4,"doc_module_name":46,"category_name":105,"show_sort_weight":106,"slug":107},5,"Comic",60,"comic",{"id":109,"doc_module":4,"doc_module_name":46,"category_name":110,"show_sort_weight":29,"slug":111},6,"Technology","technology",{"id":113,"doc_module":4,"doc_module_name":46,"category_name":114,"show_sort_weight":115,"slug":116},7,"Healthcare",40,"healthcare",{"id":118,"doc_module":4,"doc_module_name":46,"category_name":119,"show_sort_weight":120,"slug":121},8,"Research & Report",30,"research-report",{"id":123,"doc_module":4,"doc_module_name":46,"category_name":124,"show_sort_weight":21,"slug":125},9,"Religion & Spirituality","religion-spirituality",{"id":21,"doc_module":4,"doc_module_name":46,"category_name":127,"show_sort_weight":21,"slug":128},"World Cup","world-cup",{"id":130,"doc_module":4,"doc_module_name":46,"category_name":131,"show_sort_weight":130,"slug":132},10,"Lifestyle","lifestyle",{"id":134,"doc_module":4,"doc_module_name":46,"category_name":135,"show_sort_weight":104,"slug":136},19,"General","general"]