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In terms of structure and bonding explain why the boiling point of magnesium is much higher than that of bromine?

Bromine is molecular, existing as Br2 molecules, wheras magnesium is metallic and therefore exists in a large macromolecular structure. In bromine there are strong INTERmolecular covalent bonds, but only wea...
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Answered by Edwina B. • Chemistry tutor
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"Why is Mathematics important, I wont use any of it when I start work?"

This is a common question asked by young students and adults, which demotivates them to study and prevents passion from being the driving force during the tougher chapters. Mathematics is used in every indus...
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Answered by Ashish T. • Maths tutor
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What was the cause of the French Revolution?

It's possible to outline an interplay between various different causes in leading to the start of the French Revolution. One could highlight issues such as the ineffectivness of Louis XVI as a ruler, the com...
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Answered by Milly W. • History tutor
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Given that x = 1/2 is a root of the equation 2x^3 – 9x^2 + kx – 13 = 0, find the value of k and the other roots of the equation.

Firstly, we note that a 'root' is simply a solution of the equation (at least, in this case). Let's start from what we've been told: x = 1/2 is a root of the equation. Since it's a solution, let's sub it in ...
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Answered by Eugene L. • Maths tutor
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Art has always been my best subject and I’m really good at drawing, but I’m getting a B for my coursework. What can I do to get an A*?

While traditional techniques and drawing are certainly important in the A Level, they only count for a small percentage of your grade. Coursework projects that receive the top grades will present a consisten...
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Answered by Josie P. • Art tutor
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