What is color change example?
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Certain chemical reactions are characterized by a change in the colour of reactants. For example, when we add some pieces of iron to the blue colored copper sulphate solution, the colour of the solution turns light green.
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A change in color is also another characteristic of a chemical reaction taking place. For example, if one were to observe the rusting of metal over time, one would realized that the metal has changed color and turned orange. This change in color is evidence of a chemical reaction
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