1- give an example of a chemical change along with an equation for each of the following situations: (a) A change in colour is observed. (b) A gas is evolved. (c) Rust is formed.
(Please tell me the answer, Thank you.)
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a. when fresh apples are kept cut down for a long period of time
b. while the process of respiration , oxygen and carbon dioxide faded are evolved
c. when iron is kept for a long time in contact with oxygen and moisture
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