chemistry 21 dicussion

[anushey]

how was your chemistry 21 exam.???i think the gradient will be high this time.what do u think???was the paper easy.i found qs 5 a bit tricky and what was the colour of aq HBr??

 

[Xara]

what was the bond angle for ocs ?

 

[roadtrip9o9]

threshold will be high for sure around 50, not more than that . as the last question was a bit tricky and required time ... Ocs bond angle was 180 and the percentage purity was 90.8%

 

[Xara]

threshold will be high for sure around 50, not more than that . as the last question was a bit tricky and required time ... Ocs bond angle was 180 and the percentage purity was 90.8%

yep % purity was 90.8

 

[Xara]

how was your chemistry 21 exam.???i think the gradient will be high this time.what do u think???was the paper easy.i found qs 5 a bit tricky and what was the colour of aq HBr??

yep the threshold will be high this time
aq hbr would go from brown to colourless
and yea that ques 5 related to X ughh it was tricky pretty much it was an easy paper.

 

[anushey]

i think Hbr is colourless.

 

[anushey]

bond angle was 180.Na2o was alkaline rite?/?and is NaOH white or colurless?