Explain what is the formula of the oxide

Reference no: EM13534145

A strip of electrolytically pure copper weighing 3.178 gram is strongly heated in a stream of oxygen until it is all converted to a black oxide. The resultant black powder weighs 3.978 g.

a) What is the formula of the oxide?

b) Suggest a balanced reaction for this process.

Reference no: EM13534145

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