for aqa - yep but you only need to know the basics like the positive ions go to the negative electrode and vice versa, and it turns them back into atoms
Yes but only a small part of it, you basically just need to know what is required for electrolysis to occur (electrolytes, and electrodes), and what happens at the negative and positive electrodes.
Here's what's on the spec for c1 and electrolysis:
Metals that are more reactive than carbon, such as aluminium, are extracted by electrolysis of molten compounds. The use of large amounts of energy in the extraction of these metals makes them expensive.
Copper can be extracted from copper-rich ores by heating the ores in a furnace (smelting). The copper can be purified by electrolysis.
Copper can be obtained from solutions of copper salts by electrolysis or by displacement using scrap iron.
Candidates should know that during electrolysis positive ions move towards the negative electrode.
Yes you need to know it for C1 AQA, but not as in depth as C2/C3
yes in aqa i dont really understand it though can someone break it down ??
What are the best things to revise to prepare for this exam or what have you guys done? Chemistry is a subject I hate but I had really good coursework so I want to try and get the best possible. Haven't really revised for it too much, but still four days till this exam so want to do a bit. Will probably do a past paper after going over things too.