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What is the trend of reactivity in group 1 metals?

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’ att...
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Answered by Keshen P. Chemistry tutor
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How should a history essay be structured, and how long should it be?

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 to...
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Answered by Kit M. History tutor
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How should I prepare a text for an A Level English examination?

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 thematic...
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How does electrolysis work?

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 that when in liquid for...
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Answered by Maddie R. Chemistry tutor
4234 Views

differentiate x^3-6x^2+2x=0

To differentiate an equation, the first step is multiplying the coefficients of the variables (the coefficient is the number a variable is already being multiplied by, for example in 6x the coefficient of th...
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Answered by Meg K. Maths tutor
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