Am I stupid or what ... ?

[AStarHunter]

ok, guyz, isn`t this equation kind of NOT BALANCED ? (it was written in a chemistry mark scheme ! )

Li2O + H2SO4
Li2SO4 + 2H2O <--- sorry, it looks kind of messed up for an equation -.-"

 

[Keeemoman]

Why did you add 2 on H2O!!!!!!!!!!!!!
Its of no use

 

[AStarHunter]

Why did you add 2 on H2O!!!!!!!!!!!!!
Its of no use

It wasn`t me who did that ! It was in a chemistry mark scheme and I thought the same thing too (that the 2 in front of the water shouldn`t be there)! Here`s the link if you`d like to check --->
http://www.xtremepapers.me/CIE/inde.../0620 - Chemistry/&file=0620_s08_ms_31+32.pdf
Go to page 9, Q4(a)(ii)

 

[skinnyboyfat]

i think u r stupid....lol...nah jk...the 2 shouldnt be there i think...

 

[Ali4lyf]

Why did you add 2 on H2O!!!!!!!!!!!!!
Its of no use

It wasn`t me who did that ! It was in a chemistry mark scheme and I thought the same thing too (that the 2 in front of the water shouldn`t be there)! Here`s the link if you`d like to check --->
http://www.xtremepapers.me/CIE/inde.../0620 - Chemistry/&file=0620_s08_ms_31+32.pdf
Go to page 9, Q4(a)(ii)

SOME TIMES MARK SCHEME SUBMITS WRONG ANSWERS SO DONT FULLY TRUST IT AS in physic paper 1 extension question it is showing wrong answer (200) but right one is (150) so
2 shouldn't be there in H20

Your Mind have got More Power Than Markscheme but it should be correct !

 

[skinnyboyfat]

on the same link check page 4 a (ii)....thats the correct 1....and as ali4lyf said...mark schemes are sometimes not correct...after all they r made by humans...and humans make errors...

 

[Ali4lyf]

Mark Schemes are not correct but they will check your answers correctly so be aware =)

 

[tripleA95]

@ Ali4lyf Miz much Hahaha.

 

[Ali4lyf]

@ Ali4lyf Miz much Hahaha.

haha yea and HBK But little shy to post his

 

[tuckletoe]

No. I think water should be added. My teacher said, where ever you get to balance Oxygen, add water to the products.

 

[AStarHunter]

Ok, thanx guyz

 

[CaptainDanger]

Yes, there is mistake in the MARKING SCHEMES sometimes....