The chemical equation Cu + H2SO3 -> CuSO3 + H2

1. Detailed information about the Cu + H₂SO₃ -> CuSO₃ + H₂chemicalequation:

This is a chemical equation describing the reaction process between copper (Cu) and sulfurous acid (H₂SO₃) to form copper (II) sulfate (CuSO₃) and hydrogen (H₂). This is a redox reaction.

2. Reaction conditions:

This reaction needs an acidic environment to take place. Sulfurous acid (H₂SO₃) plays the role of an oxidizing agent, and also creates an acidic environment for the reaction.

3. Reaction process:

Cu + H₂SO₃ -> CuSO₃ + H₂

In this reaction, copper (Cu) is oxidized from oxidation state 0 to +2, while H₂SO₃ is reduced from oxidation state +4 (of sulfur) to +1.

4. Phenomena occurring:

When copper reacts with sulfurous acid, the copper surface will gradually lose its shine, turning to the green color of copper (II) sulfate. At the same time, bubbles of hydrogen gas will be released.