Chemistry Unit 3B.........Predictions...?????

[cardude456]

Tell us your predictions !!!

 

[IGCSE Abdullah]

Well anything could come but whats the difference btw sigma and pi bonds??

 

[cardude456]

Sigma bond-The bond formed by the head to head overlap of atomic orbitals
Pi bond-the bond formed by the parallel overlap of atomic orbitals. Pi bond is weak and easily available for outer attack. Therefore Alkenes are more reactive

Hope this helps!!!

 

[IGCSE Abdullah]

well, ok but when do you have exam??

 

[cardude456]

Tommorow

 

[IGCSE Abdullah]

ok well here to tomorrow!!
how can we improve the accuracy of results by distillation??

 

[cardude456]

Sorry...............dnt knw

 

[qstar.inc]

ok well here to tomorrow!!
how can we improve the accuracy of results by distillation?? A.hole

Simple Distillation Guides:
1 - Ensure that all joins are tight and the water lines are secured!
2 - Fill the distillation flask between one-third and one-half full.
3 - Allow the distillation to proceed at 10 drops/minute.
4 - Use different receiving flasks for the beginning, middle and the end.
5 - Never let the distillation flasks dry.