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Writing an excellent essay, whilst naturally requiring good and convincing prose, is actually quite the regimented science. A good essay 'formula' will consist of the same kind of points and argument s...

Stoichiometry is just a way of relating two species that react, in a ratio. EXAMPLE: 1A + 2B -> 3C Now usually this would be written as A + 2B -> 3C but I've written the 1 to exaggerate the point. N...

If the roots of this cubic equation are a, b and c, then the equation can be written(z - a)(z - b)(z - c) = 0multiplying this out gives:z^3 - az^2 - bz^2 - cz^2 + abz + acz + bcz - abcgrouping terms with ...

The imperative mood is used when giving commands to a number of persons: either the 2nd person singular 'tu', the 1st ...

All that is meant by an 'excited' atom is that one or more of the atoms electrons in it's shells, are then excited into shells that are in higher energy states that they were in before.

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