when the Powder of a common metal is heated in an open China dish its colour turns black however when hydrogen is passed over the hot black substance over form it regains its original colour based on the above information answer the following questions a what type of chemical reaction takes place in each of the two given steps by name the metal initially taken in powder form write balanced chemical equations for both reactions
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Answer:
A. It is a redox reaction.
B. Metal initially taken: Copper
C.
2Ca + O₂ ------------> 2CaO
CaO + H₂ --------> Ca + H₂O
Explanation:
C. In the second reaction ,
H₂ is the substance oxidized,
CaO is the substance reduced,
H₂ is the reducing agent
CaO is the oxidizing agent.
To know more about redox reactions, follow this link: https://brainly.in/question/16152315
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