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How does increasing chain length alter the melting and boiling temperatures?

For a substance to melt or boil, heat energy must be supplied. This is to overcome Van der Waals forces. As the length of a chain increases, there are more Van der Waals forces present due to the chain ge...

Answered by Rhea S. • Chemistry tutor

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Why does phenol react more readily with bromine than benzene?

The oxygen on the OH (of the phenol) has a lone pair which it donates into the delocalised pi system of the ringThis activates the ring and there is now a high electron density.This is now strong enough t...

Answered by Leah K. • Chemistry tutor

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Explain: 1. Why butanoic acid has a higher boiling point than butan1-ol? 2. Why carboxylic acids of short chain length are more soluble in water than those with longer carbon chain length?

1.Butanoic acid has stronger intermolecular forces (hydrogen bonding) because it has two highly electronegative oxygen atoms in its structure, whereas butan-1-ol has only one. Therefore t...

Answered by Samuel L. • Chemistry tutor

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State the element in period 3 that has the highest melting point and explain your answer.

Silicon has a Chrystal structure with many covalent bonds between atoms. Covalent bonds are strong and need a large amount of energy to be broken in order to melt Silicon.

Answered by Lily B. • Chemistry tutor

3626 Views

What is hydrogen bonding and why does water have a higher boiling point than methanol?

Hydrogen bonding is an intermolecular interaction between a partially positively charged hydrogen atom on one molecule and a partially negatively charged atom on another molecule. The difference in charge...

Answered by Max Q. • Chemistry tutor

21782 Views