Science, asked by kartikkapoor59057, 11 months ago

what is physical change and chemical change ​

Answers

Answered by sunildas9447240162
0

Answer:

Physical change

Explanation:

no change occurs, only the shape and size of the object change

no new things are formed

Chemical change

change occurs

new things are formed

Answered by Kushalsai26
0

Answer:

Physical change:

The type of change in which the physical properties of a material change. It can be changed in shape, state of matter, color, density, size, odor, solubility, etc. During this change, only the physical traits of the substances are changed. The chemical composition or its internal properties are not affected by these changes. The atoms are reorganized but the composition remains unchanged. The physical changes can be seen easily.

Few examples of physical changes are:

Dissolving sugar in water, Sublimation of dry ice, crushing a paper, Melting of wax, Boiling of water, Melting of ice, etc.

Chemical change:

A chemical change is a change of materials into another, new materials with different properties, and one or more than one new substance are formed.

EX:

Burning of paper and log of wood

Digestion of food

Boiling an egg

Chemical battery usage

Electroplating a metal

Baking a cake

Milk going sour

Various metabolic reactions that take place in the cells

Rotting of fruits

Decomposition of waste

The explosion of fireworks

The reaction between salts and acids.

Rusting of iron

Lightening a matchstick

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