GENERAL ANATOMY
DIGESTIVE SYSTEM
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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chemical
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physical
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Detailed explanation-1: -A change in which a substance undergoes a change in its physical properties is called a physical change. A physical change is generally reversible. In such a change no new substance is formed.
Detailed explanation-2: -In a physical change the appearance or form of the matter changes but the kind of matter in the substance does not. However in a chemical change, the kind of matter changes and at least one new substance with new properties is formed.
Detailed explanation-3: -Physical changes do not produce a new substance. Chemical changes result in the production of a new substance and cannot be reversed.
Detailed explanation-4: -When a substance undergoes a physical change, its composition remains the same despite its molecules being rearranged. Physical change can be reversible or irreversible. A physical change affects only physical properties i.e. shape, size, etc. A physical change involves very little to no absorption of energy.
Detailed explanation-5: -Some common examples of physical changes are: melting, freezing, condensing, breaking, crushing, cutting, and bending.