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Electronegativity.
Molecules with atoms which possess an almost full outer shell will always be seeking to draw in the extra electron(s) to fill up their outer shells.Likewise molecules with atoms wh...

The best way to revise is by doing practice questions, you can’t just read about the theory, you need to do as much practice as possible. This is why practicing past papers is the number one tip for revis...

Augustus had many close colleagues such as Maecenas who had links with influential figures such as poets. Maecenas then made arrangements with these people, such as Ovid and Horace and offered them money ...

When we try to simply compute y(0) we get 1 to infinity, which is indeterminate (we means we can either get 0, 1, infinity or God knows what else!). The way we want to approach these types of exercises is...

Take 2 vectors on the plane, originating from the same point, that aren't parallel: P1-->P2 = P2-P1 = -4i+3j-kP1-->P3 = P3-P1 = 0i+0k-2kOne can then find the cross product of these two vectors to de...