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In this video, we start looking at Acids, bases and alkalis. We learn what is meant by an acid and then see what all acids have in common. We then explore bases and alkalis and finish by looking at the neutralisation reaction between an acid and an alkali.

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Image credits:

Universal indicator (By Dejan Jovic DJ (Own work) [CC BYSA 4.0 (http://creativecommons.org/licenses/b...)], via Wikimedia Commons)