Electrolysis 0.0 / 5 ? ChemistryElectrolysisGCSEAQA Created by: tonisha_Created on: 05-11-21 18:46 What is electrolysis? splitting up with electricity 1 of 28 What is an electrolyte? a liquid or substance that conducts electricity 2 of 28 How many electrodes are there? two 3 of 28 What are they called? cathode anode 4 of 28 What charge does a cathode have? negative charge 5 of 28 What charge does an anode have? a positive charge 6 of 28 Which electrode do the positive ions move to? (negative) cathode 7 of 28 Which electrode do the negative ions go to? (positive) anode 8 of 28 Why? because opposites attract 9 of 28 Why cant solid ionic compounds be electrolysed? they are in fixed positions and cant move 10 of 28 Why can molten ionic compounds be electrolysed? because they can move freely 11 of 28 How? when it is melted or dissolved in water, forces of attraction are broken 12 of 28 A metal is always a what ion? a positive ion 13 of 28 It always goes to which electrode in electrolysis? cathode 14 of 28 Which reaction always takes place at the cathode? reduction 15 of 28 Which ion is the non metal always? negative ion 16 of 28 Which electrode is the non metal always at? anode 17 of 28 Which reaction always takes place at the anode? oxidation 18 of 28 What is an example of ionic bond? lead bromide 19 of 28 What is the chemical formula for this? 2+ PbBr 2 20 of 28 When lead bromide forms what does lead do? lose two electrons 21 of 28 How is this shown? 2+ - Pb--------->Pb + 2e 22 of 28 What happens when bromide forms? it gains two electrons 23 of 28 How many bromide atoms is lead ionically bonded to? 2 24 of 28 Which group is bromide in? group 7 25 of 28 Which group is lead in? group 4 26 of 28 When put in an electrolyte solution which electrode does Pb go to? cathode 27 of 28 Which electrode does Br go to? anode 28 of 28
Comments
No comments have yet been made