after the two calculations questions on the first page wat was the answer for the question below it?? i put less oxygen so incomplete combustion and how many marks was the percentage decompsition question worth
Nah mate you probably got it wrong Umar Hassan, the answer should have been octane number goes up. Looks like no pharmacy for you :|
For the metallic bonding question did you have to put Mg2+ and Al3+? Or could you just write magnesium/aluminium ion, seeing as though the charges were in the diagram that the labels were pointing too
I think aluminium ion and magnesium ion will be the preferred answer since the boxes were quite large in size and because the charges were already labelled on the diagram
For the energy density question, did anyone get +198 KjKg-1
Yh i got 198 but others got some big ass numver basically what i did was 1000 divided by Mr then what ever answer i got i times by the enthalpy change??
Hi guys, Am gonna make a whatssapp group for ocr salters chemistry F334, f335 (and f332 if anyone is retaking). Please Dm me. I have don't whattsapp groups for some of my subjects and they have really worked great. thanks xx
Me too because it's said man made and photochemical smog isn't man made and particulates are residues of carbon dioxide so I reckoned it was a greenhouse gas