ZIMSEC O Level Combined Science Notes: Experiment: Reducing Copper oxide with carbon
Aim: To reduce copper oxide with carbon
Materials: black copper oxide, tongs, crucible lid, powdered carbon, burner
Method
- Mix the copper oxide and powdered carbon together in the crucible lid
- Using tongs, hold the lid over the hottest part of the flame and heat strongly until you see some change in the mixture
Observation and Results
- The mixture smokes and burns
- The copper oxide is reduced while carbon dioxide is reduced
Conclusion
- Copper can be reduced by carbon to give carbon dioxide and copper
- The equation is:
- \text{copper quad oxide+carbon}\rightarrow\text{copper+carbon dioxide}
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