Top answers

Chemistry
A Level

What are 'Rate equations' and why are they useful?

The rate equation of a reaction is useful to describe the relationship between the rate of a reaction and the concentration of its reactants. It is used to determine how a change in the concentration of a...

JM
Answered by Joshua M. Chemistry tutor
3020 Views

Explain why bromine reacts more readily with phenol than benzene

Benzenes bonding consists of sideways overlap of PI bonds between carbons in the ring. due to the extensive overlapping and the PI bond not being held between two atoms the electrons are said to be deloca...

MA
Answered by Molly A. Chemistry tutor
9962 Views

Excess KCN(aq) is added to a solution of [Co(H2O)6]2+. Identify the complex ion formed and predict its shape and charge.

[Co(CN)6]4-CN has -1 charge so overall charge is -4. CN- is similar sized ligand to H2O so shape is unchanged and remains octahedral.

JJ
Answered by Jack J. Chemistry tutor
3717 Views

Could you explain why water has a high latent heat of vapourisation?

A water molecule is polar. Due to the uneven sharing of electrons in the hydrogen-oxygen covalent bond, the oxygen molecule is slightly negatively charged and the hydrogen atoms are slightly positively ch...

SJ
Answered by Steffan J. Chemistry tutor
4707 Views

Why do I have to learn about electron shells.

This knowledge may not help you become good at your job in the future, but it is critical knowledge for everyone to have. electrons exist in certain energy levels around the atom. When an atom is hit by a...

AM
Answered by Alireza M. Chemistry tutor
1917 Views

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