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What is the best way to plan an essay?

When answering an essay question, the most important stage, in my view, is the planning. Personally, I like to make a mind map, but it really depends on what you feel the most comfortable with, and I reco...

Answered by Emma O. • History tutor

2742 Views

Why is the argument of a+bi equal to arctan(b/a)?

Think about the point a+bi on the complex plane. Specifically, a is how far along the x (real) axis, and b is how far up the y (imaginary) axis the point is. If you draw a line connecting the origin and t...

Answered by Martin S. • Further Mathematics tutor

15260 Views

How to plan a A Level History source question?

Extract A Argument Claims: Judgement in response: Factual Information to the validity (or not) of claims: Summary of Paragraph:

Answered by Ines D. • History tutor

2884 Views

Please use the VSEPR theory to predict the shape of NH3 and the approximate bond angles

The student should draw the lewis structure - this should be worked through using the whiteboard 2. From the lewis structure it can be identified that NH3 has 3 bonds and one lone pair of electrons ...

Answered by Alisha G. • Chemistry tutor

6081 Views

For the equilibrium reaction PCl5(g) (equilibrium arrow)-> PCl3(g) + Cl2(g) explain the effect of increasing the concentration of Chlorine gas using the equilibrium constant.

Kc=[Cl2(g)][PCl3(g)]/[PCl5(g)] for this reaction. The rate constant is not affected by changes in concentration and hence an increase in the concentration of Chlorine causes an increase in the concentrati...

Answered by James H. • Chemistry tutor

14575 Views