What is the result when a metal is attacked by a substance such as acid?
Corrosion
The correct answer is Corrosion.
Factors Affecting Corrosion: The rate of corrosion can be influenced by factors like temperature, concentration of the corrosive substance (like acid), presence of impurities, and the specific type of metal. Prevention of Corrosion: Methods to prevent or reduce corrosion include painting, plating (coating with another metal), galvanizing (coating with zinc), using alloys resistant to corrosion (like stainless steel), and cathodic protection. The attack of metal by acid is a form of chemical corrosion, a direct reaction between the metal atoms and the acid molecules.
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\(HPO_4^{2-}+NH_4^{1+}\rightarrow H_2PO_4^{1-}+NH_3\)
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pH of a neutral solution is ___________.
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