Give four points of chemical and physical changes
Answers
Answer:
physical changes. chemical changes
* crushing of can. * burning of leaves
* tearing of paper. *melting of ice
* cutting of vegetables. * adding chemicals
* folding of clothes. * smoke from vehicles
Answer:
1.Chemical change
During a chemical reaction, absorption and evolution of energy take place.
Physical change
Some examples of physical change are freezing of water, melting of wax, boiling of water, etc...
2.Chemical change
A few examples of chemical change are digestion of food, burning of coal, rusting, etc.
Physical change
In a physical change, no new substance is formed.
3.Physical change
Examples of physical properties include melting, transition to a gas, change of strength, change of durability, changes to crystal form, textural change, shape, size, color, volume and density.
Chemical change
Types of physical changes include boiling, clouding, dissolution, freezing, freeze-drying, frost, liquefaction, melting, smoke and vaporization.
4.Chemical change
A chemical change is irreversible
Physical change
A physical change is a temporary change.
Explanation:
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