A coin collector observed some green blue mark on the copper tokens in s collection. What is the phenomenon involved? What is the composition of ts green blue mass.
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The phenomenon is CORROSION.
The green blue mass is basic copper carbonate with formula CuCO3.Cu(OH)2.
Copper reacts with CO2 , H2O and O2 in air to form basic copper carbonate.
2Cu + H2O + CO2 + O2 ------> CuCO3.Cu(OH)2.
Hope it helps.....
Any doubts , comment down or message me.
Mark my answer as brainliest if it helped.
- Mâhêshwáràñ.
The green blue mass is basic copper carbonate with formula CuCO3.Cu(OH)2.
Copper reacts with CO2 , H2O and O2 in air to form basic copper carbonate.
2Cu + H2O + CO2 + O2 ------> CuCO3.Cu(OH)2.
Hope it helps.....
Any doubts , comment down or message me.
Mark my answer as brainliest if it helped.
- Mâhêshwáràñ.
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