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How do you choose quotations, and how do you use them in a paragraph?

Mainly AQA Specification A01 is a crucial part of the marking scheme so it is important that you come to grips with it effectively. It looks at your ability to critically use textual references and quotation...
SD
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Describe the products of the following Friedl-Crafts substitution and explain the role of the AlCl3 in the reaction: C6H6 + CH3C(O)Cl + AlCl3 = ?

C6H6 + CH3C(O)Cl = C6H5C(O)CH3 + HCl This is an example of an electrophilic aromatic substitution reaction, with the product being a ketone. The AlCl3 serves as a catalyst, converting the acyl chloride into ...
TH
Answered by Thomas H. • Chemistry tutor
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How far could the historian make use of sources x and y together to investigate z

Investigating sources in conjunction with each other requires the employment of many of the skills used in analysing a single source, be that primary or secondary, but with a few key differences. 'Cross-refe...
FL
Answered by Fred L. • History tutor
8739 Views

What is concurrent validity?

In order to better understand concurrent validity, we should approach construct validity first: Construct validity refers to a test's ability to measure what it claims to measure. For example, does a test fo...
AK
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Write (x-2)(x+4)=10 in the form ax^2 + bx + c = 0 and work out the values of a, b and c

We should begin by multiplying out the brackets. Firstly, multiply each term in the first bracket with the first term in the second bracket: x times x equals x 2 and -2 multiplied by x is equal to -2x. Next,...
TC
Answered by Thomas C. • Maths tutor
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