class 10 ncert chapter 1 activity 1.11 explain with aim , procedure,and conclusion
please tell me full correct
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class 10 ncert chapter 1 activity 1.11 explain with aim , procedure,and conclusion
please tell me full correct
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Answer:
Procedure: This activity asks us to heat copper powder in a china dish.
Observation: Surface of powder becomes black.
Explanation:
Explanation: All metals except gold and platinum are reactive elements. They react with various gases present in the atmosphere like oxygen, sulphur etc. These reactions take time. Heating metals hastens the reaction and we can easily observe the change during heating. Copper also reacts with atmospheric oxygen and forms a coating of its oxide on them. This oxide gives them a black appearance.
Heat
2Cu(s) + O2(g) ————> CuO(s)
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