write down equation for corrosion of following metals - Fe,Al,Cu and Ag
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The chemical reaction in which iron (Fe) combines with oxygen (O2) to form rust, or iron oxide (Fe2O3). The equation for this reaction is: 4Fe+ 3O2 → 2Fe2O. This equation illustrates the use of coefficients to balance chemical equations.
.When copper or silver combines with oxygen, the process is known as corrosion or oxidation. ... The chemical equation of this reaction is 4Cu + O2 = 2Cu2O, and forms Copper Oxide. Silver objects corrode slowly in the air due to the presence of H2S in the air. The chemical equation of this reaction is 2Ag + O2 = Ag2O.
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