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How would you analyse and use a source?

Analysing a Source Walkthrough
Circles of Inference (Use whiteboard feature)
Questions to address immediately (particularly if there is limited context to the source)
· What is the s...

Answered by Toby B. • History tutor

1880 Views

Excess KCN(aq) is added to a solution of [Co(H2O)6]2+. Identify the complex ion formed and predict its shape and charge.

[Co(CN)6]4-CN has -1 charge so overall charge is -4. CN- is similar sized ligand to H2O so shape is unchanged and remains octahedral.

Answered by Jack J. • Chemistry tutor

3717 Views

Why did Hitler become Chancellor of Germany in January 1933?

This is a very typical question for history A-level exams and I would suggest that a student approached it in four factors. The factors that I propose caused Hitler to become chancellor are 1) The failure...

Answered by Holly A. • History tutor

10387 Views

The curve C has the equation y=((x^2+4)(x-3))/2*x where x is not equal to 0 . Find the tangent to the curve C at the point where x=-1 in the form y=mx+c

Firstly we need to expand out y into a series of terms to make it easier for us to compute the derivative . You multiply out the brackets to get y=(x³-3x²+4x-12)/2x then we divide ea...

Answered by Ellie M. • Maths tutor

12022 Views

How can I remember all of the content in A-Level biology?

A-Level Biology has probably the most content of any of the A-Level sciences! Its tempting to memorise all the content in the textbook but in reality some textbooks will have extra information that is no...

Answered by Joseph V. • Biology tutor

4639 Views