Physics, Chemistry and Biology: Post your doubts here!

[teachyourself]

I am going off-topic kind off.

yes you are, happens to everyone

as for any explanations you need i have given them in other relevant threads

 

[sweetiepie94]

https://www.xtremepapers.com/community/threads/useful-stuff-compiled.10273/

hope this helps

 

[Najahh]

Chemistry - Organic Chemistry, Stichiometry. Any helpful notes to clarify these topics?
Compound colors, are difficult to learn. Any easy way?

 

[mohmed ahmed soliman]

alslam alykum,
I want IGCSE biology extended curriculum topical past paper please in a pdf format

 

[princess of cricket]

Is scientific calculator allowed in biology paper ? Reply ASAP

 

[Alma_2]

what are metalloids ??

 

[Pepita]

please!! i need the biology igcse 3rd edition teachers resource CD rom for the workbook answers it is very urgent!!

 

[sweetiepie94]

please!! i need the biology igcse 3rd edition teachers resource CD rom for the workbook answers it is very urgent!!

https://www.xtremepapers.com/commun...ed-papers-cds-notes-old-new-pastpapers.43904/

 

[Mahrukh Iftikhar]

A 0.216g sample of an aluminium compound X reacts with an excess of water to produce a single hydrocarbon gas. This gas burns completely in O2 to form H2O and CO2 only. The volume of CO2 at room temperature and pressure is 108 cm3.
What is the formula of X?
A Al2C3 B Al3C2 C Al3C4 D Al4C3

Someone explain this please, the ans is D tho

 

[Aajinkya]

w09_qp31 question no 9)c)i
help pls

 

[Hamnah Zahoor]

w09_qp31 question no 9)c)i
help pls

Which subject?

 

[G.m.murali madhavan]

Can I have biology IGCSE 0610 2018 paper 4 and 2 for revision..
I'm not getting it in online

 

[Nagato]

Can anyone upload physics matters o level gce

 

[fatma123]

Help me with this physics problem...
On the journey from Palermo to Budapest, the journey time is shorter, even though the engine thrust is the same. Suggest what might have caused the return journey to be shorter.

 

[Ayesha Asif333]

Help me with this physics problem...
On the journey from Palermo to Budapest, the journey time is shorter, even though the engine thrust is the same. Suggest what might have caused the return journey to be shorter.

Where exactly r these questions coming from?

 

[fatma123]

Where exactly r these questions coming from?

from the physics coursebook by david sang , chapter 3 forces and motion, end of chapter questions. i think the question number is 18 b ii

 

[Hamnah Zahoor]

Help me with this physics problem...
On the journey from Palermo to Budapest, the journey time is shorter, even though the engine thrust is the same. Suggest what might have caused the return journey to be shorter.

I found this from the marking scheme

The idea of headwind on outward journey
OR tail wind on return journey
OR shorter route on return journey
OR air friction is less
OR idea of less weight
NOT flies slower.

 

[Ayesha Asif333]

from the physics coursebook by david sang , chapter 3 forces and motion, end of chapter questions. i think the question number is 18 b ii

If this book comes with a CD then u need to check it, the answers to the end of chapter questions are usually there. Otherwise, if the question reference is given the then you can always open up the marking scheme for it
Thanks to hamnah, for finding it out ^

 

[fatma123]

thnx so much for helping me guys

 

[Hamnah Zahoor]

If this book comes with a CD then u need to check it, the answers to the end of chapter questions are usually there. Otherwise, if the question reference is given the then you can always open up the marking scheme for it
Thanks to hamnah, for finding it out ^

You are welcome .....I found it in physics pastpapers code: 0625
oct/nov 2010/22 Question:3