Heating tar while making a road in an example of
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Answer:
Coal tar is a black, solid material which is used in making and repairing roads. When coal tar is heated, it melts to form a thick black liquid. The melting of coal tar on heating, is a reversible change because when hot, molten coal tar gets cooled, it solidifies again.
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Answer: chemical change
Explanation:
Chemical change because it is not reversible and a new component is obtained.
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