The interconversion of a substance from one state of matter to another is an example of ___ change (physical/chemical).

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Solution

A physical change occurs without a change in the composition of the substance. The chemical nature of the substance remains same during a physical change. For example, the chemical formula of ice and water vapor both are $H_{2} O$ . Only the physical state is different.

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The interconversion of a substance from one state of matter to another is an example of ___ change (physical/chemical).

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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 :

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The interconversion of a substance from one state of matter to another is an example of ___ change (physical/chemical).

A physical change occurs without a change in the composition of the substance. The chemical nature of the substance remains same during a physical change. For example, the chemical formula of ice and water vapor both are H2O. Only the physical state is different.

A physical change occurs without a change in the composition of the substance. The chemical nature of the substance remains same during a physical change. For example, the chemical formula of ice and water vapor both are $H_{2} O$ . Only the physical state is different.