Base from the lesson what are the similarities and differences between physical change and chemical change?
Physical change
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Similarities
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Chemical change
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Physical change
1
2
3
4
Similarities
1
2
Chemical change
1
2
3
4
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Answer:
PHYSICAL CHANGE
1.only change the appearance
2.no new substance
3.easily reversible
CHEMICAL CHANGE
1.Chemical composition
2.have one or more new substance
3.chemical reaction
SIMILARITIES
1.they both changes in the state of matter
2. they both have energy changes
Explanation:
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➢ A chemical change is usually irreversible, like in the burning of wood you cannot
return to its original form.
➢ In a chemical change, new products are created.
➢ Chemical change has a direct effect on the attractive force of atoms between
molecules in a substance.
➢ In physical change and chemical change, the substances in both processes
change.
➢ Energy is always liberated or absorbed when chemical or physical changes
happen.