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Chemistry
Kael Miller
11 December, 08:36
What are the properties of coins?
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Hector
11 December, 12:13
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Brass, which is made by melting copper and zinc together, is harder, stronger, morecorrosion resistant and has an attractive gold colour. It still keeps its anti-bacterial properties, which makes it a great material for door knobs, handrails and plumbing fittings. Copper has been used to make coins for centuries.
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