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Write chemical equations for the five reactions described: The first reaction involves the oxidation of copper...

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Chemistry

Write chemical equations for the five reactions described:

The first reaction involves the oxidation of copper with nitricacid, resulting in a blue-green colored copper (II) nitrate,Cu(NO3)2, solution.

The second reaction involves adding sodium hydroxide. Thisresults in a double replacement or precipitation reaction producesa milky-blue copper (II) hydroxide solid.

The third reaction involves decomposition of the of thehydroxide compound to a black copper (II) oxide solid whileapplying heat.

After filtering the oxide, sulfuric acid is added to the solidto produce a blue copper (II) sulfate solution in a doublereplacement, or more specifically an acid-base reaction.

Finally, solid elemental copper is recovered through a singlereplacement reaction by the addition of zinc metal filings.

Answer & Explanation Solved by verified expert
3.5 Ratings (284 Votes)
1Cu is oxidised when reacted with nitric acid Nitrogen monoxide gas is formed on reaction of Cu with dilute nitric acid HNO3 while nitrogen dioxide gasNO2is formed when Cu is reacted with concentrated HNO3Equation Both the equation are given below 3Cus 8HNO3aq 3CuNO32aq 2NOg 4H2Ol Cus4HNO3aq CuNO32aq2NO2g2H2Ol In this reaction    See Answer
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