Chemistry: Post your doubts here!

[..sacrifice4Revenge..]

don't make me mad, okay? Rules state that ANYONE can report a user who is violating the terms and the violator would be given a warining. on third warning his account will be closed. it was kind of me to tell him about rules than to report him.

Nope, just shoving the law abiding citizen's rules back at him.
Dont tell me the rules man, ive been longer here than anyone of you,and to report, theres a button present called report, not reply in a thread..
Sure, if thats what you call kind then god bless you ^^

Peace now, we all have an exam tomorrow so lets please focus.

 

[Suchal Riaz]

cn smone explain y isnt it carbon?
View attachment 45140

carbon monoxide will not react with oxygen to form CO2.
carbon monoide does react with other compounds to form CO2 as it acts as a reducing agent but not with oxygen.

 

[ZaqZainab]

why is everybody against me? i just requested to remove the signature and everybody is shouting on me.
i am done for today. can't solve anymore doubts.

I mean in general everyone chill out
you so aggressive Today didn't even start properly and you already giving up because of US lol c'mon bro

 

[GCE As and a level]

why is everybody against me? i just requested to remove the signature and everybody is shouting on me.
i am done for today. can't solve anymore doubts.

And u got wat u want
I removed it
JUST RELAX
NO ONE is shouting man
we are all friends here!!

 

[Snowysangel]

http://papers.xtremepapers.com/CIE/... AS Level/Chemistry (9701)/9701_s13_qp_11.pdf 40 the answer is C

 

[..sacrifice4Revenge..]

Unreactive cause both C and O has an octate around them not for the triple bond

Shouldnt trust ppl blindly u mean to say? :3
Ty btw ^^

 

[..sacrifice4Revenge..]

Focus guys, Focus
Dont let the CIE divide and conquer, remember who the real enemy is.!

 

[GCE As and a level]

GUYS
PLZ DONT LET CHEMISTRY EXAM MAKE US ENEMIES
..sacrifice4Revenge.. ,ZaqZainab , Suchal Riaz ,@ EVERY ONE

 

[ZaqZainab]

Shouldnt trust ppl blindly u mean to say? :3
Ty btw ^^

LOL well true that you shouldnt even trust me you decide who to trust
and if you think i am wrong a little internet research will prove i am right

 

[Suchal Riaz]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_s13_qp_11.pdf 40 the answer is C

Na will also react with OH to make CH3CH(ONa)CO2Na so it is not correct.

 

[Suchal Riaz]

actually the bond energy of both C≡C and O=O make this reaction energetically infeasible. C≡C will react with any other oxidising agent very easily because it is a very strong reducing agent.

 

[Suchal Riaz]

GUYS
PLZ DONT LET CHEMISTRY EXAM MAKE US ENEMIES
..sacrifice4Revenge.. ,ZaqZainab , Suchal Riaz ,@ EVERY ONE

i am neither friend not enemy of anyone you tagged and you. my close friends circle include saad mughal asma tareen and thought blocker only.

 

[Snowysangel]

Someone please explain these 3 to me

B
C
Is 37 also B?

 

[kitkat <3 :P]

i am neither friend not enemy of anyone you tagged and you. my close friends circle include saad mughal asma tareen and thought blocker only.

chaa gaye tussi

 

[GCE As and a level]

i am neither friend not enemy of anyone you tagged and you. my close friends circle include saad mughal asma tareen and thought blocker only.

Thts better for us
PLZ change the subject
Me and ..sacrifice4Revenge.. ,ZaqZainab dont have more time to waste it on this
\OK

 

[GCE As and a level]

i am neither friend not enemy of anyone you tagged and you. my close friends circle include saad mughal asma tareen and thought blocker only.

If u reported me,Then it will be better for me and Other students

 

[GCE As and a level]

I don't like being a p***y who report others behind back and be nice in front of them. change the subject as you said. i though you people owe me an apology but forget it. i am waiting for new doubts....

READ my replies to u
I was WISHING u best of luck , And u were just fighting for nothing
See what i wrote:

GUYS
PLZ DONT LET CHEMISTRY EXAM MAKE US ENEMIES
..sacrifice4Revenge.. ,ZaqZainab , Suchal Riaz ,@ EVERY ONE

and wat u replied:

i am neither friend not enemy of anyone you tagged and you. my close friends circle include saad mughal asma tareen and thought blocker only.

Or u can see any other post for me and ur reply to us
U have to appologize , Not me
Anyway..Lets come back to our MAIN topic...

 

[Rockstar RK]

Q16) Which element of the third period requires the least number of moles of oxygen for the complete
combustion of 1 mol of the element?
A aluminium
B magnesium
C phosphorus
D sodium

 

[GCE As and a level]

Q16) Which element of the third period requires the least number of moles of oxygen for the complete
combustion of 1 mol of the element?
A aluminium
B magnesium
C phosphorus
D sodium

Just write the equation and balance it
Hope it helps
Do u want detailed explanation??!

 

[ZaqZainab]

actually the bond energy of both C≡C and O=O make this reaction energetically infeasible. C≡C will react with any other oxidising agent very easily because it is a very strong reducing agent.

C≡C where did that come from? a little detailed explanation would be better