Clear Copper
Copper chemistry question?
It was a question of a quiz in chemistry: When 5.37 g of black copper (II) oxide are mixed with excess acid, the solution turns blue, indicating the formation of copper (II) sulfate. How many grams of copper (II) sulfate will be formed in this double displacement reaction? More questions: What exactly is the copper (II)? I do not understand the appointment. Also, what is the copper oxide black?
There are two copper oxides. Copper (II) oxide, CuO, is black. Copper (I) oxide, Cu2O, is red. The number in parentheses is the charge copper ion – + or 2 +. As for the mass of CuSO4, the calculation is: 5.37/80 x 160 (anhydrous salt).
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