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What are isotopes and how do they differ from each other?

An isotope is a different form of the same element. They differ from each other by the number of neutrons, however they have the same number of protons and electrons. This results in a different atomic mass....
HT
Answered by Hayden T. • Chemistry tutor
41416 Views

What's the difference between an electrophile and a nucleophile?

It's really useful to know that 'phile' means love. Electrophiles 'love' negative charge - this means they are attracted to regions of negative charge. And as such they tend to be positively charged. Similar...
SM
Answered by Sophie M. • Chemistry tutor
8335 Views

What evidence is there to support the delocalised model of benzene over Kekulé's model?

Bond lengths - a single bond is 0.153nm while a double bond is 0.134nm, making Kekulé's model of alternating single and double bonds asymmetric. Other evidence shows benzene to be symmetrical so it cannot ha...
KF
46445 Views

How do ionic charge and radius affect lattice enthalpy?

As the charge of an ion increases, so does its charge density. The ion can therefore form stronger electrostatic forces of attraction, resulting in stronger bonds. As these bonds form to produce a lattice st...
KF
51259 Views

How can an aldehyde be distinguished from a ketone?

An aldehyde will react with Tollen's reagent to form a characteristic silver mirror, whereas a ketone will not react. This is because an aldehyde can be oxidised to a carboxylic acid, reducing Tollen's reage...
KF
5032 Views