Qualification > Sciences
Chemistry Paper 1
Naruto:
hey
When i was going through the papers i didn't got the answer for the following questions and i guess the answers that i have are wrong so can anyone tell me the answer and explian it too. Thanks :)
The answers that i have are:
16 is D
19 is C
39 is B
If you think these answers are correct then plzz explain and if not then what is the right answer? and again explain :P
I have attached the questions
Wahab09:
16 i aint sure of but i say its
B
19 is definatly B as it contains an iodide which turns yellow.
39 is C as the number of molecules havent changed.. 2 carbons which weigh 12 and 4 hydrogens = Mr of 28
and the same thing for polyethene the Mr hasnt changed.
esso:
--- Quote from: Wahab09 on June 07, 2009, 03:49:19 pm ---16 i aint sure of but i say its
B
19 is definatly B as it contains an iodide which turns yellow.
39 is C as the number of molecules havent changed.. 2 carbons which weigh 12 and 4 hydrogens = Mr of 28
and the same thing for polyethene the Mr hasnt changed.
--- End quote ---
please dont answer if ur not sure of ur answers.....16 is D
19 is B
39 is B.....100 percent sure
susman:
19 is B 39 is B
and as for the 16 part my guess is that it isC
It cant be D because the time has started but the reaction hasnt..
it cant be A because th reaction has to slow down to come on an end
it cant be B because the speed of reaction is greatest when the aprticles have most energy/concentration..
so it is C (i guess)
+ rep if u like it
bcoz already mine is in minuses
shafeeqshazana:
nope.
16 is b
19 b
39 b
without doubts
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