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Chemistry
All levels

Explain why, when a reversible reaction reaches equilibrium, the reaction appears to have stopped.

The forward and backwards reaction have the same rate so there is no overall change in the quantity of reactants and products.

AO
11822 Views

What is the definition of a H-Bond?

A H-bond is an attraction between molecules. It is therefore an intermolecular force, and in fact one of the strongest. Molecules which exhibit H-bonding must contain a hydrogen that is directly bo...

OM
Answered by Oliver M. Chemistry tutor
2049 Views

Why does Phosphorus have a higher melting point than Chlorine?

Phosphorus exists as P4 and chlorine as Cl2 so elemental phosphorus is a bigger molecule than chlorine. Neither of these molecules has a dipole so both have only induced dipole-dipol...

RS
Answered by Rory S. Chemistry tutor
20111 Views

Describe how you could form ethyl ethanoate using only ethanol as the starting material. Include all relevant reagents and conditions.

To perform the esterification, we are going to need to react a carboxylic acid with an alcohol (in this case). We already have the correct alcohol: ethanol. Therefore to get ethanoic acid we must oxidise ...

CM
Answered by Callum M. Chemistry tutor
6390 Views

Explain the difference in reactivity between benzene and phenol with bromine?

Phenol reacts with bromine at room temperature with no catalyst as the hydroxyl group activates the ring by donating a pi electron. This donated electron increases the electron density of the ring hence a...

RL
Answered by Reece L. Chemistry tutor
9817 Views

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