Explain the characteristics of physical and chemical change
(With example)
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A chemical change is a permanent change. A Physical change affects only physical properties i.e. shape, size, etc. ... Some examples of physical change are freezing of water, melting of wax, boiling of water, etc. A few examples of chemical change are digestion of food, burning of coal, rusting, etc.
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Answer:
physical change
when matter state changes from solid to liquid to gas e.g. water solid ice to liquid water to gas vapours
chemical change
when mg reacts with air to produce mgo
magnisium react with oxygen to produce magnisium oxcid
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