Scenario

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A student masses 40 g copper (11) oxide Cuo, a black solid, and heats the substance using a Bunsen burner until the sample turns a reddish color. The chemical equation for the reaction issiven below. According to the reaction, the copper (1) oxide decomposes to produce copper(1) oxide and oxygen

4CuO → 2Cu2O + O2
Black solid Red solid Colorless gas

40 g. ? g
? g

Based on the evidence, write a scientific explanation describing the exact mass of the copper() oxide produced Provide mathematical evidence and give your reasoning in a way that demonstrates your understanding of the scientific principles involved.

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mickymike92 mickymike92 · Answer 1 · 2022-04-22T12:12:38+02:00

72 g of Copper(i) oxide will be produced by 40 g of CuO base on the law of conservation of mass.

The law of conservation of mass states that mass remains constant at the end of every reaction.

The equation of the reaction is given below:

[tex]4CuO → 2Cu_2O + O_2[/tex]

Based on the equation of reaction, 4 moles of copper (ii) oxide produces 2 moles of copper (i) oxide.

Mass of 4 moles of CuO = 4 × 80 = 160 g

Mass of 2 moles of copper (i) oxide = 2 × 144 g = 288 g

Mass of Copper(i) oxide produced by 40 g of CuO will be: 40 × 288/160 = 72 g

Therefore, 72 g of Copper(i) oxide will be produced by 40 g of CuO.

Learn more about law of conservation of mass at: https://brainly.com/question/20081187