- Messages
- 4,385
- Reaction score
- 1,644
- Points
- 173
yh by mistake i enetered it..but do u hav any idea abt it?You are in O Levels thread ..
We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
Click here to Donate Now (View Announcement)
yh by mistake i enetered it..but do u hav any idea abt it?You are in O Levels thread ..
yh by mistake i enetered it..but do u hav any idea abt it?
ohkay tanx aloottZinc + Steam --> Zinc Oxide + Hydrogen
Cond. Hot water/Steam.
Sr + 2H2O --> Sr(OH)2 +H2
Cold Water.
Two different hydrocarbons each contain the same percentage by mass of hydrogen.
It follows that they have the same
A empirical formula.
B number of isomers.
C relative molecular mass.
D structural formula.
thankuoption A !!! due to same percentage of mass of hydrogen!!!
It's Iron.is there any catalyst for haber process!!???
yaar in donon kai comments parh kai itni hansi aayi, bus kia karun!ashhab bhai aaj tu barray khush lag rahay hain Kia baat hai =D ..
Use english and no off-topicsAssalam O Alaikum Ashhab bhai .. Tayyari aik dum fit ? .. Kal kaaa Kiaaaa hoga ab :\
hmm.. hopefully, gud preparation! Inshallah, i will get good grades! syed1995
and lets see what CIE has to throw at us! lets show them the power of XPF!
bol everyone
hmm.. hopefully, gud preparation! Inshallah, i will get good grades! syed1995
and lets see what CIE has to throw at us! lets show them the power of XPF!
ashhab bhai .. In Energy change ..
If Ep is less than Er ... Reaction is Exothermic ... Delta H = Negative
if Ep is greater than Er .. Reaction is Endothermic .. right? Delta H = Positive
yes! delta H = Ep - Er, no matter what! and in endo, Ep is greater!
paper denay nahin jaana kia???
glad that i cleared that up?Jaayeingay, Jaayeingay .. Jaldi kis baat ki hai
Anyways yeah, Delta H = Ep-Er
Endo = R+Heat ---> P
Exo = R ----> P + Heat
For almost 10 years, the site XtremePapers has been trying very hard to serve its users.
However, we are now struggling to cover its operational costs due to unforeseen circumstances. If we helped you in any way, kindly contribute and be the part of this effort. No act of kindness, no matter how small, is ever wasted.
Click here to Donate Now