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Physical and Chemical changes

State one ins...

Question

State one instance where water undergoes a physical change and one in which it undergoes a chemical change.

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Solution

Water undergoes a physical change when poured to containers of different shape and size.

Water undergoes chemical change when any chemical or acid is pored to it.

Eg: Hydrochloric Acid when added to water,will change the chemical composition of water.

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Q. Matter undergoes a change. The changes are of two types: Physical and chemical change.

A physical change is a change that involves only a change in the physical state of matter. Its chemical properties remain the same. Usually increasing the temperature or applying pressure or both bring about a physical change. On reversing the condition, that is reducing the temperature or reducing the pressure or both, the original state of matter is restored. In other words, physical changes are reversible.

A chemical change is a change that involves a change in the chemical composition of matter. A new substance is formed. In a chemical change, new chemical and physical properties of the substance are formed. In a chemical change, the chemical and physical properties of the substance formed will be different from the original substance.

In a chemical change, the properties that change are :

Can a body undergo physical as well as chemical change simultaneously? Support your answer with proper example.

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