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Qui and que are relative pronouns, which means they refer back to a noun (a thing or person) you've just been talking about, in order to add some information about it. I...

An good introduction is vital as it explains to the examiner exactly what argument to intend to follow in your essay. It should therefore briefly answer the question by stating all the points you inte...

An introduction is what will help guide and direct your writing throughout your essay, so it is very important that you get it right. However, what a 'right' introduction is can be hard to pin down, a...

Breaking even refers to the point in which a businesses total revenue is equal to it's total cost, at this stage businesses are not making a profit or a loss. Breaking even is typically calculated in ...

If you add an acid to a metal oxide you get a salt and water.

For example: 

HCl + NaOH ---> NaCl + H₂O