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Detailed information about the reaction equation Cu + 2H2S -> CuS2 + 2H2:
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Reaction conditions:
- The reaction usually occurs at room temperature or higher.
- The copper must be in its pure form, not oxidized.
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Reaction process:
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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.