Write three differences between physical and chemical changes.
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Answer:
1. in a physical change, no new substance is formed .
2.a chemical change is always ammompaind by one or more new substance
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Physical Change:-
1. When a substance undergoes a physical change, its composition remains the same despite its molecules being rearranged.
2. Physical change is a temporary change.
3. A Physical change affects only physical properties i.e. shape, size, etc
Chemical change:-
1. When a substance undergoes a chemical change, its molecular composition is changed entirely. Thus, chemical changes involve the formation of new substances.
2. A chemical change is a permanent change.
3. Chemical change both physical and chemical properties of the substance including its composition
1. When a substance undergoes a physical change, its composition remains the same despite its molecules being rearranged.
2. Physical change is a temporary change.
3. A Physical change affects only physical properties i.e. shape, size, etc
Chemical change:-
1. When a substance undergoes a chemical change, its molecular composition is changed entirely. Thus, chemical changes involve the formation of new substances.
2. A chemical change is a permanent change.
3. Chemical change both physical and chemical properties of the substance including its composition
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