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Unsaturated fats usually have a C=C double bond, e.g. vegetable oil. So, it's 'unstable' because of the high concentration of negative charge (electrons). Bromine (B2) is not polarised. However, as it app...

sin cos -sin -cos (down is differentiate and up is integrate) so, y = sin5x  dy/dx = 5cos5x y=3cox      dy/dx = -3sinx y=3tan5x     dy/dx = 15sec²(5x) (remember sec(x) is the reciprocal of cos(...

Expand the brackets:

(3z + 18) - (8z + 2)

Simplify:

16 - 5z

The short answer is no, not really. 

Each colllege is different - the number of students in each year group, whether it's old or new, whether it's central or slightly outside of town.

But th...

Personal statements explain why you are passionate about the subject you have applied for. So they might include what you have studied as part of your curriculum, and how this led you to explore your subj...