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Your introduction is the cog that gets the others turning in your essay. An introduction to any essay should primarily outline the argument or points that you will make in your essay, while remaining clea...

Mg2+ is the smaller ion. (1 mark) Mg2+ has a larger nuclear charge than Na+ and has the same number of electrons. (1 mark)

Further explaination: Magnesium is further along the period than sodium is...

Now although this might seem like quite a complex question at first, it's a little less intimidating when we take a while to look at it- you might notice that we can seperate x and y terms like so:
1...

Here I am imagining a student has found difficulty both in how to structure their answer to an exam question such as this, and is also struggling with understanding the content of the question. Prior to o...

Interest rates are payments made when repaying a loan, and are also the reward for saving. Lowering them, should, disincentivise saving and encourage spending. Lower interest rates will increase consumers...