Chemistry, 23.07.2019 20:10 naomicervero
Old 5p and 10p coins in the uk were made from cupro-nickel. cupro-nickel is 75% copper and 25% nickel. new 5p coins and 10p coins in the uk are now made from nickel-plated steel and not from cupro-nickel. explain why.
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Old 5p and 10p coins in the uk were made from cupro-nickel. cupro-nickel is 75% copper and 25% nicke...
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