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Explain the physical properties of metals

Metals have a number of physical properties which make them useful to us in society, and which you will be familiar with from everyday experience. By considering the structure and bonding of metals which you...
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Answered by Michael L. • Chemistry tutor
27129 Views

How does a mass spectrometer work?

A mass spectrometer is an important analytical instrument which scientists can use to identify the amount and type of different chemicals in a substance. In this explanation I’ll go through how the mass spec...
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Answered by Michael L. • Chemistry tutor
85040 Views

How to do well in the HAT?

The History Aptitude Test is designed to test the way a prospective Oxford Historian approaches and analyses new information and uses their own knowledge to compare and contrast different arguments. To this ...
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Answered by Frederick N. • HAT tutor
8275 Views

What do I know about getting good marks in IB History?

IB History places an emphasis on different skills than traditional A-levels, it is a course designed to test your historical method rather than your factual knowledge. If we take the coursework as an example...
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Answered by Frederick N. • History tutor
4101 Views

How do I prove that an irrational number is indeed irrational?

[NOTE: An irreducible fraction (or fraction in lowest terms) is a fraction in which the numerator and denominator are integers that have no other common divisors than 1.] Given that p is a prime, positive in...
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Answered by Liam D. • Maths tutor
9750 Views