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Chemistry
A Level

Why are solutions of transition metal ions often coloured

Transition metal ions have, by definition, at least one partly filled d orbital (eg:3d). When in a solution, the positive charge of the transition metal ions can cause the lone elctron pairs of other ...

SA
Answered by Stuart A. • Chemistry tutor
7174 Views

What is the ideal gas equation?

The ideal gas equation, pV = nRT, is an equation used to calculate either the pressure, volume, temperature or number of moles of a gas. 

JC
77415 Views

Why does AlCl3 form the dimer Al2Cl6?

AlCl3 has a trigonal planar structure. There is an aluminium atom with 3 sp2 hybridised orbitals which bond to 3 chlorine atoms. The bond angle is 120 degrees. Each chlorine atom...

JW
53856 Views

What is a curly arrow?

A curly arrow is an arrow that shows the movement ...

JT
Answered by Jonny T. • Chemistry tutor
10309 Views

What is Entropy?

Entropy

At a Basic Level

Entropy, whilst a mathematical concept can be described as a measure of disorder. The more disor...

PC
Answered by Peter C. • Chemistry tutor
5766 Views

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