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Osmosis is the movement of water molecules from an area of high concentration to an area of low concentration. This is done through a semi-permeable membrane. The aim is to have the same concentration of ...

As you go down group 1, the number of electron shells increases. This means that the outer electron is further from the attractive pull of the nucleus, and it experiences more shielding from the nucleus’ ...

The general structure of a history essay should follow a similar pattern, in that it will start with a brief introduction outlining the general argument of the essay, and then move onto a series of points...

It is crucial to have read the text more than once ; this does not necessarily have to be in a linear manner, for once you are aware of the underlying structure it is possible to comb through a text thema...

Electrolysis is essentially the movement of charged ions in a solution.For example, take sodium chloride, NaCl. NaCl is the electrolyte. The electrolyte is a substance, usually a salt tha...