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Recent content by Dean713

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    More mole concept ques!!

    plz help again!1) s02 qp 3 #5 (c) (i) to (iii) http://www.xtremepapers.net/CIE/Cambrid ... 2_qp_3.pdf 2) w08 qp3 # 7 (a) (i) http://www.xtremepapers.net/CIE/Cambrid ... _qp_03.pdf 3) w07 qp 3 #7 (b) (iii) http://www.xtremepapers.net/CIE/Cambrid ... 7_qp_3.pdf 4) w01 qp3 #2 (c)...
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    Mole Concept ques!

    Some1 plz answer my third ques with S06 # 7... :)
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    Mole Concept ques!

    wats d "stickies"? anyways i get it from wat soumayya said... so moles n mole ratio is like the same thing if u already have whole numbers like in tht case??...
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    Mole Concept ques!

    But still they're askin 4 mole ratio not moles..bu i guess tht makes sense..
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    Mole Concept ques!

    isnt Mg3N2 the moles but u need to find mole ratio so dt u hav to divide each by the smallest mole so shouldnt it be Mg2N???
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    chem ques!

    could this mean atomic number*a.m.u=mass number?
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    Mole Concept ques!

    plz help! s07 qp3 #7 (d) http://www.xtremepapers.net/CIE/Cambrid ... 7_qp_3.pdf Ques with one mole of fat reacts with.... s09 qp 3 # 9(a) http://www.xtremepapers.net/CIE/Cambrid ... 9_qp_3.pdf (1st varient) the answer im gettin is Mg2N but i dnt understand how the markscheme has Mg3N2?? s06...
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    chem help

    can some1 plz explain how to find %yield n plz give an example?...
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    chem ques!

    okay thanx this answers my ques!
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    chem ques!

    whats the difference between atomic mass unit (a.m.u) and mass number for an element? whats the a.m.u for Oxygen and for each of the neutron and proton for oygen as well? Plz help!
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    biology !!!

    red blood cells r larger and white b.c smaller so can pass throu
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    Biology Paper 1 [Discussion]

    reproduction esp menstrual cycle cuz they didnt bring tht in pp3, germination of seeds...mayb bacteria \/
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    Chemistry paper1 [discussion here] after exam

    1.concentrate 2.filter 3.wash 4.heat
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