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copper + sulphur = copper sulphide!

it's been a while since I've done chemestry, so bear with me.

the reaction works out as CuS + O2 = Cu + SO2 , if i read your word equation correctly, which would make the reactants copper sulphide and oxygen.

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Jean Azzopardi

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sulphide

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Q: In the word equation copper sulphide oxygen copper sulfur dioxide name one reactant in the reaction?
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