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Chemical Reactions and Equations — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceChemical Reactions and Equations2 Marks
Question
When copper powder is heated strongly in air, it forms copper oxide. Write a balanced chemical equation for this reaction. Name:
  1. Substance oxidised, and
  2. Substance reduced.
✓

Answer

Balanced chemical reaction is as follows:$2\text{Cu}\ +\ \text{O}_2 \xrightarrow{\ \ \ \ \ \ \ \ \ \ }2\text{CuO}$
  1. He substance oxidised is copper.
  2. The substance reduced is oxygen.

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