Top answers

Chemistry
A Level

How do you deal with remembering all the knowledge required for organic chemistry questions?

You should organise your knowledge by separating synthetic routes into categories, for example: drawing the synthetic pathways of benzenes separately to those of phenols. You should then make posters or f...

KR
Answered by Kess R. Chemistry tutor
2545 Views

What is Chatelier's principle?

Le Chateliers principle states:The position of the equilibrium of a system changes to minimise the effect of any imposed change in conditions.This principle applies to any reaction that is in equilibrium....

AM
Answered by Archie M. Chemistry tutor
1984 Views

Draw the structure of chlorine pentafluoride (ClF5) according to the VSEPR theory

The molecule is uncharged, so we can find that chlorine is in its +5 oxidation state. Since there are 5 Cl-F bonds, there are 5 bonding electron pairs around the central Cl atom. We also know that chlorin...

PS
Answered by Peter S. Chemistry tutor
13197 Views

what is the number of ion in 7.41g of calcium hydoxide Ca(OH)2 ?

number of particles = mole x Avogadro constantAvogadro constant is 6.0 × 1023 mol–1.Mr of Ca(OH)2 is 7.41g mol-1mole = Mass / Mr = 7.41/7.41 = 1 moleThe questio...

WW
Answered by Wai W. Chemistry tutor
10630 Views

Explain trend in why the ionisation energies increase across the period

As we travel along the period the nuclear charge increases, this increases the grip the nuclei of the atom has on the electrons. As they are on the same period they experience almost the exactly the same ...

PJ
Answered by Patrick J. Chemistry tutor
1670 Views

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