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What is hybridisation and how can it be used to explain the shapes of molecules?

Before we start on exploring the implications of hybridisation, we should start with a definition. Hybridisation can be thought of as the mixing atomic orbitals into new hybrid orbitals suitable that can ...

RM
Answered by Rebecca M. Chemistry tutor
5269 Views

A-level - How to differentiate e^x where x is more complicated?

For exampe: e4x^3
The way to look at this is, the differential of e4x^3 = the ...

JC
Answered by Jake C. Maths tutor
3226 Views

Find an equation for the straight line connecting point A (7,4) and point B(2,0)

In this question we will use the fact we know a straight line can be written in the form (y-y1)=m(x-x1). Where m is the gradient and (x1,y1) is a point on the l...

HM
Answered by Hannah M. Maths tutor
4275 Views

An triangular prism has base xcm, height (x+4)cm and length 4xcm. Find the volume of the prism in terms of x. Find the volume when x=2cm.

This question combines knowledge of volume equations with using unknown variables. We know the volume of a prism is the area of the face multiplied by the length. The first step would be to find the area ...

MP
Answered by Megan P. Maths tutor
2877 Views

Were economic factors the driving force behind imperial expansion during the Age of 'New Imperialism' c1870-1914?

Historians such as J Hobson, and Marxist writers eg Lenin, have all argued that economic factors were the driving force behind imperial expansion. The effects of the industrial revolution and the conseque...

TB
Answered by Thomas B. History tutor
2071 Views

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