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Explain, in terms of its structure and bonding, why magnesium oxide has a very high melting point (4).

Magnesium oxide has a giant 3D lattice structure formed by strong electrostatic forces of attraction between the positively charged magnesium ions and the negatively charged oxygen ions. These ionic bonds...

LH
Answered by Luke H. Chemistry tutor
23262 Views

How should I prepare for a theology interview at Oxbridge?

The best practical advice I could give would be to ensure that you know your personal statement inside-out. At Cambridge they tend to give 2 interviews where one of the interviews will focus primarily upo...

1775 Views

How does the conduction system of the heart control the systolic phase of the cardiac cycle?

The SA node initiates an impulse which travels across the atria causing them to contract and blood is forced actively into the ventricles. This is called atrial systole. The AV node then delays the impuls...

LW
10935 Views

Find an expression for the nth term of the following sequence: 7, 11, 15, 19

In terms of understanding the question, we are asked to look for a common rule that would help us find any term, or member, of the sequence in the question, no matter how big. The "nth" bit they...

LH
Answered by Luke H. Maths tutor
4514 Views

Analyse how an increase in wages could cause inflation.

Higher wages may increase consumer expenditure increasing aggregate demand - diagram showing aggregate demand increasing. This causes demand-pull inflation if demand rises by more than money supply and t...

KB
9970 Views

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