Question

What is the difference between physical change and chemical change? give an example in support of your answer.​

Answer 1

phycial change : a change in which no new sustance is formed .

chemical change : a change in which new substance is formed

Answer 2

Answer:

• Physical change

1. When the physical state of the substance changes but it's chemical composition remain same, then it is said that a physical change has taken.
2. Physical change is often temporary in nature.
3. During physical change, new substances are not formed.
4. Example: Condensation of steam, Evaporation of water, melting of ice, melting of wax.

• Chemical change

1. A chemical reaction is a process in which substances undergo bond breaking and are transformed into new substances by formation of new bonds.
2. Chemical changes remain permanent.
3. During chemical change, composition of matter changes.
4. Example: Burning of wood, Rusting of iron, Ripening of fruit.