How we know rusting of iron is a change
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We can say a chemical reaction or chemical change has taken place by the following :
Change in color
Change in temperature
Evolution of gas
Change in state
In the above case there is a change in color of iron and there has been a change in the physical state
So by this we can conclude that rusting of iron is a chemical change
Change in color
Change in temperature
Evolution of gas
Change in state
In the above case there is a change in color of iron and there has been a change in the physical state
So by this we can conclude that rusting of iron is a chemical change
Answered by
1
rusting of iron is a chemical change and it came be prevent by oiling, greasing, painting etc.. hope this answer will help you
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