Question

Chemistry homework.
1.What is physical change ? Write 4 examples

2.classify the following changes in to reversible and irreversible change .melting of ice ,vaporization of water ,boiling of an egg,burning of coal,photosynthesis.digestion of food​

Answer 1

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Physical changes effects physically , it can reverseble .

• metliing of ice
• tearing of paper
• many more

Answer 2

Answer:

Change in physical property is known as physical change.

example

1 Melting an ice cube.

2 Boiling water.

3 Mixing sand and water

4 Breaking a glass.