which statement describes one of the main differences between a physical and a chemical change?

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01-10-2021
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which statement describes one of the main differences between a physical and a chemical change?

Sagot :

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Alathn9876idn Alathn9876idn · Answer 1 · 2021-10-06T00:31:39-04:00

Answer: The correct option is, A physical change brings about a different form of the same substance, whereas a chemical change forms a different substance.

Explanation:

Physical change : It is a change in which the actual composition of the molecule remains same when the molecules are rearranged.

There is no new substance formed in this change.

Generally, the physical change is reversible.

Energy is not produced in the physical change.

Chemical change : It is a change in which the actual composition of the molecule are changed completely when the molecules are rearranged.

The new substance is formed in this change.

Generally, the chemical change is irreversible.

Energy is produced in the chemical change.

Therefore, the correct answer is, A physical change brings about a different form of the same substance, whereas a chemical change forms a different substance.

Sagot :

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