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What I like to do first is to analyze the essay question, what they are asking for and how you should write down the information needed. A...

Definite articles are used when we talk about something specific. There are four definite articles: La (femenine, singular), Las (femenine, plural), El (masculine, singular), Los (masculine, plural). For ...

We start off by drawing attention to the first number in the question, 12. The number can be broken down into multiples by dividing it by the lowest number (that isn't 1): This breakdown is as follows:...

Hydrochloric acid is an example of a strong acid because it is completely ionised in water. 

When it comes to simultaneous equations, there are two methods that we can use to solve them. The first method is called substitution, where we make one of the variables the subject in on...