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Chemistry

A Level

What is the angle between bonds of a H2O molecule

104.5

Answered by Robert H. • Chemistry tutor

1418 Views

Name and explain the three types of isomerism present in organic compounds.

There are three types of isomerism:1) Structural isomerism - Occurs when compounds which have the same molecular formula (eg. C4H9Br1) but have different atomic arrangements. Eg. CH2Br-CH2-CH2-CH3CH3-CHBr...

Answered by Jonny M. • Chemistry tutor

2177 Views

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

2560 Views

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

18982 Views

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

3363 Views