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abdullah181994 said:please please please answer this and explian your working
Is it C?
If my answer's correct, I'll explain it.
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abdullah181994 said:please please please answer this and explian your working
Anonymousx3 said:abdullah181994 said:please please please answer this and explian your working
Is it C?
If my answer's correct, I'll explain it.
Mobeen said:@saturation . ill look for 5 in the past papers and let u know ..
abdullah181994 said:@ anonymosx i also answered it c but the correct answer is D.
abdullah181994 said:@ anonymosx i also answered it c but the correct answer is D.
Thanks, but can you tell me what the 3 alkenes are!?Mobeen said:*for q4 is B ^
Saturation said:abdullah181994 said:@ anonymosx i also answered it c but the correct answer is D.
It's C4H8, :
0.2 mol produced 35.2g of CO2 and 14.4g of H20, which is 0.8 mol of CO2 and 0.8mol of H20
so now you have the ratio, 0.2 gave us 0.8, so 1 mol should give us 4 mol each. Now we have the balanced equation, so just adjust the number of carbon and hydrogen, to match equation:
CxHy + 6O2 = 4CO2 + 4H20
therefore, x = 4 and y = 8, so it's C4H8!
Mobeen said:@saturation my answers were correct and now u can even check them from mark scheme
i dont know it either .. only know it because ive seen this question in past papers 2 or 3 times.. atleast now ur sure abt the answer because the marking scheme says soSaturation said:Thanks, but can you tell me what the 3 alkenes are!?Mobeen said:*for q4 is B ^
ill search for q5 too ..Saturation said:Mobeen said:@saturation my answers were correct and now u can even check them from mark scheme
I know, but what about qs 5!? and what are the 3 alkenes for qs 4 pls! Thanks!
abdullah181994 said:thanks@ saturation
Mobeen said:i dont know it either .. only know it because ive seen this question in past papers 2 or 3 times.. atleast now ur sure abt the answer because the marking scheme says soSaturation said:Thanks, but can you tell me what the 3 alkenes are!?Mobeen said:*for q4 is B ^
Mobeen said:saturation u were right .. q5 is D .. it is w08 qp1 q 38 . answer is D ..
abdullah181994 said:Some one please explian why graphite is more stable then diamond.
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