- Messages
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Is it B?http://papers.xtremepapers.com/CIE/...l O Level/Chemistry (5070)/5070_s11_qp_11.pdf
question no.12 .. please.
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Is it B?http://papers.xtremepapers.com/CIE/...l O Level/Chemistry (5070)/5070_s11_qp_11.pdf
question no.12 .. please.
yesIs it B?
wht topic exactly are u tslking about ?do you have notes related to these topics..??
It's B because we always divide the percentage composition of an element in a compound with it's Ar to find the empirical formula
hmmmmm....... i dnt rele have thm...wait i'll compile gv me an hour ...oxygen, hydrogen wale notes ?
surehmmmmm....... i dnt rele have thm...wait i'll compile gv me an hour ...
yup, SiO2 is acidic oxide.C as calciumoxide is basic while SiO2 is acidic i guess
book me tosirf teen hainyup, SiO2 is acidic oxide.
basic oxides: group 1, group 2 (except Be)
amphoteric oxides: Be, Al, Ga, In, Ge, Sn, Pb, As, Sb, Bi
acidic oxides :B, C, Si, N, P, O, S, Se, Te
there is a very helpful thing called googlebook me tosirf teen hain
are all ov em in our course??there is a very helpful thing called google
thanks...these are better . may i ask, where did u get it?i hope it will b helpful to u guyz..if anything is missing or u want notes for other topic ..im alwayz there to help ....hope u like it.....
let me know if these notes are good enoughi hope it will b helpful to u guyz..if anything is missing or u want notes for other topic ..im alwayz there to help ....hope u like it.....
i complied it ...from different websites.........thanks...these are better . may i ask, where did u get it?
but this is not the correct answer, mark scheme says Al2O3nitrogen cux nitrogen is a non metal and non metal acidic oxide
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