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What are the differences between intermolecular and intramolecular forces?

Intermolecular forces are forces between separate molecules that hold the substance together. There are three main types; dipole-dipole interactions, hydrogen bonding and London dispersion forces, which are ...
JM
Answered by Jamie M. • Chemistry tutor
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How do you complete the square?

You start off with a formula in the form y = x 2 + bx. The first step is to add the square of half of the coefficient of x: (b/2) 2 . This allows us to rearrange the formula into (x+ b/2) 2 . However, our fo...
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Answered by Jamie M. • Maths tutor
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a) Give a balanced equation for the complete combustion of butane, b) Explain how this would change if there was insufficient oxygen present, and explain the problems this causes

C 4 H 10 + 6.5O 2 -> 4CO 2 + 5H 2 O If there is not enough oxygen, incomplete combustion will occur, so CO (carbon monoxide) will be formed, carbon will form soot, and unburnt hydrocarbons will be release...
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Answered by Abigail P. • Chemistry tutor
10947 Views

To what extent was Neville Chamberlain's policy of appeasement responsible for the rise of Hitler and the eventual start of the Second World War?

Although Neville Chamberlain is often blamed for being solely responsible for allowing Hitler to mobilise a Germany that was spoiling for war, the extent to which this is the main reason is limited. A Europe...
HF
Answered by Harry F. • History tutor
3283 Views

How do I use verbal aspect in the past tense?

In Russian, verbal aspects are used to indicate the state of the action that you are talking about. In English we can distinguish between ongoing actions (e.g. “I have been reading a book”) and completed act...
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Answered by Emma B. • Russian tutor
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