Chemistry, 03.06.2021 04:40 spellsaltoniza

The ratio of zinc to copper in some alloy is 2 to 5. If 60 kilograms of zinc are used, how many kilograms of copper are needed to make this alloy

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The ratio of zinc to copper in some alloy is 2 to 5. If 60 kilograms of zinc are used, how many kilo...