Top answers


Why do first ionisation energies decrease down a group but increase across a period?

The nucleus contains positively charged protons which attract the negative electrons, the first ionisation energy is the energy required to overcome this attraction and remove 1 electron As you go down a gro...
AM
Answered by Amy M. Chemistry tutor
2450 Views

Can you do a mock interview with me?

I will prepare various questions based on their personal statement, and depending on if the interview they are preparing for is MMI or panel style, I will prepare several stations each looking for different ...
AM
1407 Views

How can I distil all of my quotes so I can remember them for the exam?

In my revision for my English Lit A Level, I used quote banks to organise my ideas and make essay planning more efficient. These are tables in which the left side shows themes within the text and the top has...
AV
4702 Views

How do I structure an essay?

To make it easier for you to keep hold of your ideas, you can summarise your points in your introduction. For example, if I was writing an essay about Christmas, I might say; 'In order to explain what Christ...
AV
4121 Views

f(x) = x^3+2x^2-x-2 . Solve for f(x) = 0

f(x) = x 3 + 2x 2 - x - 2 Use the factor theorem to test for f(1) = 0 f(1) = 1 3 + 2*1 2 - 1 - 2 = 0 Therefore x = 1 is a solution and (x-1) is a factor of f(x) Now factorise f(x) x 3 + 2x 2 - x - 2 = (x-1)(...
ES
Answered by Elena S. Maths tutor
5522 Views