if in copper oxide dilute hydrogen acid is added and the solution becomes blue-green what happens to copper oxide? and why the blue green solution is formed
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a double displacement reaction. The soluble copper(II)chloride is blue-green in color and is responsible for the color of the solution formed. When dilute HCl is added to a small amount of copper oxide in a beaker, a greenish-yellow gas is released and a bluish-green solution is formed
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