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How to write an introduction for an A-Level History exam?

For GCSE and A-Level there is a somewhat similar structure to an answer, however it depends on the mark scheme and the Assessment Objectives which need to be covered.

For A-Level it is important to...

KT
Answered by Kim T. History tutor
77312 Views

How do I answer scenario questions?

In AQA Law A Level, for units 2, 3 and 4, you will be asked a scenario question. To ensure you get the best grade you can, you need to answer the question in a specific way. First, you need to have a good...

AM
Answered by Andrew M. Law tutor
13512 Views

Given is a following reaction at equilibrium: N2(g) + 3H2(g) ⇄ 2NH3(g), ΔH < 0. What will be the effect of changing the following conditions on the system? 1. Increasing pressure. 2. Decreasing temperature. 3. Adding a catalyst. 4. Adding HCl(g).

The correct approach to this question is to use the Le Chatelier's principle, which states that when you change conditions of a system at equilibrium, the system counteracts the change - a new equilibrium...

MK
Answered by Maciej K. Chemistry tutor
20826 Views

Find the x co-ordinates of the stationary points of the graph with equation y = cos(x)7e^(x). Give your answer in the form x = a +/- bn where a/b are numbers to be found, and n is the set of integers.

The stationary points on a curve of the form y=f(x) are where dy/dx = 0. To find dy/dx, differentiate using the product rule: dy/dx = 7e^x(d/dx(cosx)) + cosx(d/dx(7e^x)) = -sinx(7e^x) + cosx(7e^x). Now se...

JS
Answered by Joseph S. Maths tutor
7078 Views

How do I use Pythagoras' Theorem to calculate the hypotenuse of a triangle?

[use of board] So, Pythagoras' theorem states that a^2+b^2=c^2. Therefore, we need to mark the triangle with a, b &c. a and b do not matter, c must be the longest edge, that creates the diagonal. Put ...

CT
Answered by Cathy T. Maths tutor
3586 Views

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