Physics, Chemistry and Biology: Post your doubts here!

[DANISH182]

Unfortunately me! until tomorrow afternoon

no problem maybe by studying a little more will make ur grades betterf

 

[shingiechingz@8]

good keep it up and do well in exam and dont sleep durings examinations!!

I did slept in the afternoon so there's no prob

 

[DANISH182]

Can anyone give me the definition of the Avogadro constant ?

it is the no. of atoms,ions or molecules in one mole
=6 x 10000000000000000000000000

 

[DANISH182]

I did slept in the afternoon so there's no prob

me too otherwise i would have slept earlier

 

[Kiara P.]

it is the no. of atoms,ions or molecules in one mole
=6 x 10000000000000000000000000

Thanks.

 

[shingiechingz@8]

View attachment 53867

8cm^3 of phosphate reacts completely with 12cm^3 of the T nitrate.

So we will take the ratio.
Phosphate:T
8:12

2:3

So i guess it will be like T3(PO4)2
As it takes 3 of the T ones to reach with 2 of the phosphates. I am not sure between.

 

[DANISH182]

guys it is going to be fajr prayer in 15 min so pray and make dua for all that r giving the exams and make dua that the exam should be easy

 

[shingiechingz@8]

WISH U ALL THE BEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

 

[DANISH182]

hey guys how to draw a flow chart that how acid rain is formed

 

[shingiechingz@8]

whren can i download some chemistry 2014 m/j papers

 

[DANISH182]

whren can i download some chemistry 2014 m/j papers

go to http://smarteduhub.com/cie-past-papers
or http://www.igcsecentre.com/cambridge-igcse-past-exam-papers/

 

[shingiechingz@8]

go to http://smarteduhub.com/cie-past-papers
or http://www.igcsecentre.com/cambridge-igcse-past-exam-papers/

thanks!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

 

[DANISH182]

thanks!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

what is the time there where u live and when will be the exam starting???

 

[shingiechingz@8]

what is the time there where u live and when will be the exam starting???

am startin at 200pm and the time is 316am

 

[DANISH182]

am startin at 200pm and the time is 316am

wow u hav a lot of time here it is 5:19 and starting time is 9 am

 

[shingiechingz@8]

wow u hav a lot of time here it is 5:19 and starting time is 9 am

well l woudnt want to be in your shoes

 

[DANISH182]

why iron plated with tin does not rust?

 

[DANISH182]

bye guys now i am going to school give me best of luck and pray for me

 

[Tozu Fofo]

View attachment 53867

Scroll down you find the answer to the same question
https://www.xtremepapers.com/commun...t-your-doubts-here.11053/page-446#post-922148

 

[Tozu Fofo]

Good Luck!!!