Hi ,I'm really confused how many oxidation states do we need to remember the colours for Transition metal section
I'm pretty sure we don't need to know all the oxidation states and colours from that table on page 205 in the textbook. I think we just need to know the colours for the precipitation reactions, ligand substitution and redox titrations
To get an A* in OCR Chemistry A, does one have to achieve at least 90% UMS in each A2 module (84/90, 135/150, 54/60) or is it just 90% UMS overall at A2 (270/300, so one module's scores can make up for another)? This is of course, provided As are achieved across all 6 modules.
To get an A* in OCR Chemistry A, does one have to achieve at least 90% UMS in each A2 module (84/90, 135/150, 54/60) or is it just 90% UMS overall at A2 (270/300, so one module's scores can make up for another)? This is of course, provided As are achieved across all 6 modules.
Its 90% overall at A2 and 80% over the whole a level.
In your F324 guide, the very last page you have the page of A2 Reactions ;
You've listed the products for the alkaline hydrolysis of esters as the carboxylic acid + salt, but in the textbook it says it's the salt of carboxylic acid + alcohol. Which is correct?
In your F324 guide, the very last page you have the page of A2 Reactions ;
You've listed the products for the alkaline hydrolysis of esters as the carboxylic acid + salt, but in the textbook it says it's the salt of carboxylic acid + alcohol. Which is correct?
So scared for the chemistry papers this year now Last year's papers weren't really easy at all Hoping they got lazy since we're the last year and just waste recycle old questions
So scared for the chemistry papers this year now Last year's papers weren't really easy at all Hoping they got lazy since we're the last year and just waste recycle old questions