Use of amount of substance in relation to masses of pure substances

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Question 18
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Copper(II) oxide reacts with carbon to produce copper and carbon dioxide. The ratio of the masses of copper(II) oxide and carbon that react is:

copper(II) oxide:carbon=53:4\text{copper(II) oxide} : \text{carbon} = 53 : 4copper(II) oxide:carbon=53:4

Calculate the mass of copper(II) oxide that reacts completely with 6 g6\text{ g}6 g of carbon.

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Use of amount of substance in relation to masses of pure substances Questions

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