Properties of Copper

Properties of Copper:

Physical properties:

Copper is a reddish brown metal, with high density, high lustre, and high melting point 1356°C.

Chemical Properties:

1) Action of air and moisture:

Copper gets enclosed with a green layer of basic copper carbonate, in the presence of CO2 and moisture

2Cu + O2 + CO2 + H2O → Cu(OH)2.CuCO3
                                   (i.e., Green) Copper Carbonate


2) Action of Heat:

Copper whenever heated to redness (i.e., below 1370K) in the presence of air or oxygen, first it gets transformed to black cupric oxide and further heating to above 1370K, it gets transformed into red cuprous oxide.

3) Action of acids:

a) With dilute HCl and H2SO4:

Dilute acids like HCl and H2SO4 contain no action on such metals in the absence of air or an oxidising agent. Copper dissolves in such acids in the presence of air

2Cu + 4HCl + O2 (air) → 2CuCl2 + 2H2O
2Cu + 2H2SO4+ O2 (air) → 2CuSO4 + 2H2O

b) With dil. HNO3:

Copper combines with dilute HNO3 with the release of NO gas.
3Cu + 8HNO3 (dil) → 3Cu (NO3)2 + 2NO↑ + 4H2O

c) With con. HNO3 and con.H2SO4:

Copper reacts with con.HNO3 and con.H2SO4 with the release of NO2 and SO2 correspondingly.

Cu + 4HNO3 (con) → Cu(NO3)2 + 2NO2↑ + 2H2O
Cu + 2H2SO4 (con) → CuSO4 + SO2↑ + 2H2O


4) Action of chlorine:

Chlorine reacts with copper, resultant in the formation of copper chloride.

Cu + Cl2 → CuCl2

v) Action of alkalis:

Copper never attacked by alkalies.

 

Latest technology based Chemistry Online Tutoring Assistance

Tutors, at the www.tutorsglobe.com, take pledge to provide full satisfaction and assurance in D Block Elements homework help via online tutoring. Students are getting 100% satisfaction by online tutors across the globe. Here you can get homework help for D Block Elements, project ideas and tutorials. We provide email based D Block Elements homework help. You can join us to ask queries 24x7 with live, experienced and qualified online tutors specialized in D Block Elements. Through Online Tutoring, you would be able to complete your homework or assignments at your home. Tutors at the TutorsGlobe are committed to provide the best quality online tutoring assistance for Inorganic-Chemistry Homework Help and assignment help services. They use their experience, as they have solved thousands of the Chemistry assignments, which may help you to solve your complex issues of D Block Elements. TutorsGlobe assure for the best quality compliance to your homework. Compromise with quality is not in our dictionary. If we feel that we are not able to provide the homework help as per the deadline or given instruction by the student, we refund the money of the student without any delay.

©TutorsGlobe All rights reserved 2022-2023.