How to memorise cation tests for chemistry? : r/igcse - Reddit
Sep 12, 2023 · For the halide tests, dilute nitric acid is used to remove any rogue hydroxide and carbonate ions. (Hydrochloric acid is also not used because that would give a false positive for …
Why would you use nitric acid instead of hydrochloric acid to ... - Reddit
Jun 22, 2020 · Why would you use nitric acid instead of hydrochloric acid to test for halides? I was told that dilute HCL is used to test for sulfate,but can’t understand why it is not used to test for halides. …
Electrolysis of dilute and concentrated solutions - 0620 : r/igcse - Reddit
May 2, 2023 · I DON'T UNDERSTAND IT, for example in the electrolysis of NaCl. If the solution is dilute, hydroxide ions are released at the anode, if concentrated, chloride ions are released. Like …
How are you planning to remember the tests for ions? (AQA C3
May 12, 2015 · Personally I go with: Little Connor Said You Pee Lilac Carrots Rodger Barium Green For the flame tests, And for the halide ions I remember it goes white, cream, yellow (slowly gets more …
ELI5: Could the halide ions (fluoride, chloride, bromide and ... - Reddit
Aug 11, 2022 · A halide ion has a negative charge as it has one less proton in the nucleus. Even though the electron configuration is the same as the adjacent noble gas. So its going to react differently. …
Any easy way to remember ion tests for C3? : r/GCSE - Reddit
May 13, 2015 · You mean for negative ions? For Halide: chloride = white precipitate bromide = cream precipitate iodide = yellow precipitate I remember the colours as a gradient, slowly getting "yellower" …
Charges for Polyatomic Ions? : r/chemhelp - Reddit
Sep 15, 2016 · For polyatomic ions containing oxygen and a halogen (F, Cl, Br, I), the charge of the polyatomic ion is the same as the charge of the halide: -1. For polyatomic ions containing oxygen …
Why are halogens so much more colourful than their corresponding …
Jun 1, 2019 · Why are halogens so much more colourful than their corresponding halide ions in polar solvents? So in a halide-halogen reaction, Cl 2 will displace I- ions into the solution as I2, forming a …
ELI5: What are Halide Ions? : r/explainlikeimfive - Reddit
Jan 15, 2019 · The noble gases are extremely stable. Halogen atoms only have to gain one electron to have the same number of electrons as the adjacent noble gas element. That's why the -1 ions for the …
Mobility of halide ions : r/chemhelp - Reddit
Aug 6, 2021 · The mobility of halide ions generally increases down the group with iodide ion showing an exception. My reasoning: Going down the group, the ionic radius increases, meaning that the surface …