Copper can be found as a free metal, but most often it is found in a compound with sulfur, such as CuS (covellite) or Cu2S (chalcocite). 1. These ores often are heated with oxygen to change them to copper oxides. Sulfur dioxide gas also is formed. Write a balanced chemical equation for this reaction for each of the copper sulfides.

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sebassandin sebassandin · Answer 1 · 2019-12-21T16:00:10+01:00

Answer:

[tex]CuS+\frac{3}{2}O_2-->SO_2+CuO[/tex]

[tex]Cu_2S+\frac{3}{2} O_2-->SO_2+Cu_2O[/tex]

Explanation:

Hello,

At first, for the covellite, CuS, the balanced chemical reaction turns out into:

[tex]CuS+\frac{3}{2}O_2-->SO_2+CuO[/tex]

Secondly, for the chalcocite, Cu2S, the balanced chemical reaction turns out into:

[tex]Cu_2S+\frac{3}{2} O_2-->SO_2+Cu_2O[/tex]

Such reactions are quite the same in terms of the stoichiometric coefficient of oxygen.

Best regards.