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Yay!!Relative Abundance 45% and 55% is correct, according to my chem teacher.
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Yay!!Relative Abundance 45% and 55% is correct, according to my chem teacher.
check the internet, it says 51,49Relative Abundance 45% and 55% is correct, according to my chem teacher.
how was butane a by product of free radical substittution ? when the two molecules of C2H5 radicals combine in termination ?check the internet, it says 51,49
when 2 molecules of C2H5 radical react with eachother, they form butane (C4H10)h
how was butane a by product of free radical substittution ? when the two molecules of C2H5 radicals combine in termination ?
Chemistry AS is difficult to learn than physics (don't know about biology), but the theory paper is considerably easier as the questions are similar each year. Physics, on the other hand, has some questions that require great thought and to add to that lesser time is available.I lost a lot of marks in this paper x_x how is the threshold so low every year? Chemistry is harder than both bio and physics and yet the grade threshold of the latter two is always considerable lower
I beg to differ. The questions in chem were different..physics was more or less the same. I mean A at about 50/60? plus physics has one line answers...in Chem if we misunderstand the question we can risk a great deal of marksChemistry AS is difficult to learn than physics (don't know about biology), but the theory paper is considerably easier as the questions are similar each year. Physics, on the other hand, has some questions that require great thought and to add to that lesser time is available.
I'n not talking about this session but as a whole. This year chemistry threshold will be lower and physics will be higher than average. The past organic questions are similar every year, though not this time. I also think the difference is too large. It also depends on what you are good at though.I beg to differ. The questions in chem were different..physics was more or less the same. I mean A at about 50/60? plus physics has one line answers...in Chem if we misunderstand the question we can risk a great deal of marks
this is correct...all of our class fellows got the same.. we asked our teacher too..best of luckI got 49 point something % and the other as 50.04%
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