Top answers

Chemistry
A Level

How do you calculate lattice enthaply?

You can't directly measure lattice enthalpy of a solid crystal, so you have to look at a different method. Usually this would be experimentally or using Hess's Law to construct a Born-Haber cycle. The Bor...

Answered by Chemistry tutor
1988 Views

Describe the bonding in, and the structure of, sodium chloride and ice. Explain why they have very different melting points.

(Firstly, we identify this as a ‘Structure and Bonding’ problem and try to distinguish between the bonds holding atoms together and the intermolecular forces holding molecules together. We can take ea...

GK
Answered by Georgia K. Chemistry tutor
18186 Views

In the topic of transition metals, what are the different types of ligands and what in itself, is a ligand?

Firstly, ligands are an atom, molecule or ion which can donate a electron pair (lone electron pair). In a diagram, we would show this donation of a lone electron pair to a central metal ion by using a arr...

Answered by Chemistry tutor
1864 Views

What is meant by terms 'saturated' and 'unsaturated' when applied to alkanes and alkenes? Describe a chemical test to distinguish between the liquids hexane and hexene.

Saturated – contains single bonds only.Unsaturated – contains one or more carbon-carbon double bonds.Shake each with bromine water. Hexene will decolorise bromine water, which will go from orange to colou...

KS
Answered by Kamile S. Chemistry tutor
6056 Views

What are geometrical isomers? Explain, structurally, why geometrical isomers exist.

Molecules differing in the relative bond positions of two groups about carbon-carbon double bonds. Free rotation is not possible about a carbon-carbon double bond. Thus, groups attached to the double-bond...

KS
Answered by Kamile S. Chemistry tutor
1677 Views

We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences