Qualification > Sciences
Chemistry Paper 1
idk:
ok well first 19 should be K2SO4 as yellow ppt produce by sulphur.
16 according to me should be B as first the explosion reaction will cause inc. in rate of RX but then reaction will stabilise but continue at a certain speed.this can be seen in nuclear reactors too and thats why boron rods are put to regulate the speed of reaction.39 i think should be B as no matter what happens there will be 2 atoms of c and 4 atoms of h in 'n' number of molecules too.hope this helps.
nid404:
19 is B
39 is B
16 is D(after a lot of research on explosion and reaction rate)
Ghost Of Highbury:
i think the 39 answer is B
In an addition polymerisation unsaturated monomer units react together to form a polymer with essentially the same empirical formula as the monomer
Ghost Of Highbury:
for the 16th one i think its (b)
jennie:
16 = C
19 = B
39 = B
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