Question

Identify the phase of the copper product after each reaction in the copper cycle.

A. The addition of NaOH to Cu(NO₃)₂
B. The addition of H₂SO₄ to CuO
C. The heating of Cu(OH)₂
D. The addition of Zn to CuSO₄
E. The addition of HNO₃ to Cu

Answer 1

The phase of the copper product after each reaction in the copper cycle depends on the reactants used.

Step-by-step explanation:

The phase of the copper product after each reaction in the copper cycle can be identified as follows:

1. A. The addition of NaOH to Cu(NO₃)₂: Cu(NO₃)₂ is a blue solid, so the phase after the reaction is a blue solid.
2. B. The addition of H₂SO₄ to CuO: CuO is a black solid, so the phase after the reaction is a black solid.
3. C. The heating of Cu(OH)₂: Cu(OH)₂ is a light blue solid. When heated, it decomposes to form CuO, which is a black solid. So, the phase after the reaction is a black solid.
4. D. The addition of Zn to CuSO₄: CuSO₄ is a blue solution, and zinc (Zn) is a silver metal. After the reaction, copper (Cu) is displaced by zinc, resulting in the formation of a solid copper (Cu) and a colorless solution of zinc sulfate (ZnSO₄).
5. E. The addition of HNO₃ to Cu: Cu is a reddish-brown metal. When it reacts with HNO₃, it forms a blue solution of Cu(NO₃)₂.