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How to use the conditional tense

Go through conjugating verb after verb after verb to root the conjugation in the student's mind and then start using it in sentences by saying the sentence in english and asking them to translate and then mo...
JP
Answered by Jessica P. • Italian tutor
2684 Views

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 include a...
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Answered by Kim T. • History tutor
81133 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 un...
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Answered by Andrew M. • Law tutor
14382 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 is...
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Answered by Maciej K. • Chemistry tutor
22547 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 set d...
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Answered by Joseph S. • Maths tutor
7659 Views