Top answers

Chemistry
A Level

Explain, in general, how a catalyst works

A catalyst is a material that can speed up a reaction, but reamins chemically unchanged at the end of the reaction. A catalyst works by providing the reactants an alternative rout...

Answered by Chung L. Chemistry tutor
9394 Views

Define and give an example of Le Chatalier's Principle of Chemical Equilibrium.

For any change that occurs in a chemical system, the equilibrium of that system will shift in order to counteract the change being imposed on that system. For example, if the temperature is increased for ...

Answered by Benn C. Chemistry tutor
3007 Views

How do heterolytic catalysts work?

What are catalysts? They are substances that speed up the rate of reaction by providing a favourable pathway, of lower activation energy, for the reaction to proceed. A heterogeneous catalyst is one that ...

Answered by Dhylan M. Chemistry tutor
3747 Views

Explain the unusually high boiling point of HF

  • Due to the high electronegativity of flourine hydrogen bonds can be formed between HF molecules. - Hydrogen bonds require more energy to break that London Forces. - The other haloge...
Answered by Chloe G. Chemistry tutor
27901 Views

Write a half-equation for the overall oxidation of ethanol into ethanoic acid.

 Answer:

CH3CH2OH + H2O CH3COOH + 4H+ + 4e– 

The question requests a half equation and so it is acceptable to write electrons and unpaired Hydrogen ions, so long as the charge overall is bal...

Answered by Harry S. Chemistry tutor
22497 Views

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