Hey! IGCSE 2013 Physics,Maths,Biology and Chemistry

[ZaqZainab]

Hey guys I suck at formulas I really want to know which formulas should i learn for the coming exams!
In Maths i have the booklet if there are any other formulas do let me know and Chemistry i just have learned formulas from stoichiometry and the one formula from Chromatography The rf value formula! is there any other i am missing please let me know and for physics i have learned Speed, Pressure,Velocity,Density,Power,Resistance, Acceleration,Specific heat capacity, Specific Latent heat,Resistance, Frequency Anything else?? And for Bio i don't think i have to learn any?? are there any formulas for bio :/ Please help just 4 days left
And I had a Doubt chem -in the Thermal Decomosition of Copper(II)nitrate what is the brown gas produces Thanks in Advance!

 

[Jelleh Belleh]

For bio, you need to know the magnification=image size/actual size formula.

 

[Nadine Dhatly]

just practice with past papers, you'll find out what you need to know pretty quickly.

 

[strawberry 1]

for bio just the magnification
which is drawing size÷actual size
and the formula for the actual size is
drawing size÷magnification

for paper 6 bio
learn these topics very well they often come
osomosis
plants, including the diagram withe the mesophyll and plaisade cells
also know how to plan experiments to investigate a certain thing they give u
also indentifying similarities and differences between 2things either fruits or seeds
also practice drawing magnification and labelling parts

and know how to interrupt data from graphs and drawing graphs

 

[strawberry 1]

for chem

the decomposition

will give nitrogen dioxide

formuls is

2Cu(NO)3» 4NO2+2CuO+O2

hope this helps

 

[sj0007]

Hey guys I suck at formulas I really want to know which formulas should i learn for the coming exams!
In Maths i have the booklet if there are any other formulas do let me know and Chemistry i just have learned formulas from stoichiometry and the one formula from Chromatography The rf value formula! is there any other i am missing please let me know and for physics i have learned Speed, Pressure,Velocity,Density,Power,Resistance, Acceleration,Specific heat capacity, Specific Latent heat,Resistance, Frequency Anything else?? And for Bio i don't think i have to learn any?? are there any formulas for bio :/ Please help just 4 days left
And I had a Doubt chem -in the Thermal Decomosition of Copper(II)nitrate what is the brown gas produces Thanks in Advance!

the brown gas is nitrogen di oxide

 

[arshzagade]

for bio just the magnification
which is drawing size÷actual size
and the formula for the actual size is
drawing size÷magnification

for paper 6 bio
learn these topics very well they often come
osomosis
plants, including the diagram withe the mesophyll and plaisade cells
also know how to plan experiments to investigate a certain thing they give u
also indentifying similarities and differences between 2things either fruits or seeds
also practice drawing magnification and labelling parts

and know how to interrupt data from graphs and drawing graphs

have u done with the papers????

 

[humdono]

in physics even electricity is really important and there are quite alot of fomulas for the unit without which you practically cant solve half the questions. on top of that electricity in paper 3 is almost 15-20 marks

 

[ZaqZainab]

have u done with the papers????

Yes

 

[arshzagade]

Yes

can u please email the important section in all subjects ...please [email protected]....exams nearby.....

 

[nerdyy]

Yes

which papers you did from chemistry

 

[ZaqZainab]

which papers you did from chemistry

nearly all the latest

 

[nerdyy]

nearly all the latest

oh my God can we chat on facebook just so you give me a general idea of how it was, and what was on it ? i'd be gratefull !

 

[ZaqZainab]

oh my God can we chat on facebook just so you give me a general idea of how it was, and what was on it ? i'd be gratefull !

I don't use facebook

 

[nerdyy]

okay then here, just the main things from chemistry which were on papers ?

 

[ZaqZainab]

okay then here, just the main things from chemistry which were on papers ?

Wait have you mistaken me?

 

[ZaqZainab]

I mean to say i have done all that on the PAST PAPER and i have done nearly all the latest Papers

 

[nerdyy]

I mean to say i have done all that on the PAST PAPER and i have done nearly all the latest Papers

ahahahhaha well i'm sorry my bad i thought you did your exam. well good luck then to everyone !