Chemistry, asked by swapneelBk, 5 hours ago

State your observation and identify the type of change. i) Camphor is heated and then cooled. ii) A piece of magnesium ribbon is burnt in air. iii) Quick lime is added to water. iv) Common salt is added to water. v) Preparation of food by plants.

Answers

Answered by ak1010561

For Ex:Burning of magnesium ribbon,Rusting of iron,Formation of curd from milk,Cooking of food etc.

Physical change Chemical Change

1)No new substance is formed in the physical change. A new substance is formed in a chemical change.

2)Physical change is temporary change. A chemical change is a permanent change.

3)Physical change is reversible. Chemical change is irreversible.

4)Very little heat or light energy is usually absorbed or given out in a physical change A lot of heat or light energy is absorbed or given out in a chemical change.

5)The mass of a substance does not alter in a physical change The mass of a substance does alter in a chemical change.

Filed Under: Class 9, Is matter around us pure

Tagged With: chemical change, example of chemical change, example of physical change

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State your observation and identify the type of change. i) Camphor is heated and then cooled. ii) A piece of magnesium ribbon is burnt in air. iii) Quick lime is added to water. iv) Common salt is added to water. v) Preparation of food by plants.​

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State your observation and identify the type of change. i) Camphor is heated and then cooled. ii) A piece of magnesium ribbon is burnt in air. iii) Quick lime is added to water. iv) Common salt is added to water. v) Preparation of food by plants.