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Simeltanous equations are a pair of equations that have 2 unknows. In order to solve a simelatneous equation 1 of the unknows must be eliminated. This can be done by either:
1. Substitut...
An Extraneous Variable is something that the experimenter cannot control, which can have an effect on the overall outcome of the experiment. The main four extraneous variables are demand charac...
Candy's dog was once very helpful on the farm, but due to his old age he now has nothing to offer the branch. This is similar to Candy himself, who recognises he is increasingly becoming less useful an...
Under high-stress conditions, such as an exam, the most important thing is not to rush in and panic. Read the poem all the way through once or twice without making any annotations. Once you feel that you ...
Fractional distillation is covered in almost every GCSE chemistry course, although what you need to know varies slightly by syllabus. The main points to take away are explained below.Why do we do frac...
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