The equation Cu + 2H2S -> CuS2 + 2H2

Detailed information about the reaction equation Cu + 2H₂S -> CuS₂ + 2H₂:

• The transformation equation describes the reaction process between copper (Cu) and hydrogen sulfide (H₂S). The result of the reaction is the compound copper sulfide (CuS₂) and hydrogen gas (H₂).

Reaction conditions:

• The reaction usually occurs at room temperature or higher.
• The copper must be in its pure form, not oxidized.

Reaction process:

• First, copper (Cu) and hydrogen sulfide (H₂S) will come into contact with each other.
• Next, two atoms of hydrogen sulfide will react with one atom of copper, creating copper sulfide (CuS₂).
• Finally, hydrogen gas (H₂) will be generated and released into the air.

Observable phenomena:

• When the reaction occurs, you can see the color of the copper-containing substance changing from red to black due to the formation of copper sulfide.
• A quantity of gas (hydrogen) will be released into the air.