Question

Which answer below correctly identifies the type of change and the explanation for the boiling of water?

physical change because even though the change caused the temperature of the water to increase,
the water's physical properties remained exactly the same
physical change because even though gas formation was observed, the water was undergoing a
state change, which means that its original properties are preserved
chemical change because gas formation was observed, which indicated that the water was
transformed into a different substance
chemical change because a temperature change was observed, which indicated that the water was
transformed into a different substance
DONE
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Answer 1

Boiling of water is physical change.

Step-by-step explanation:

Physical change is that change where the form of the matter is altered, but there is no change in the chemical composition . It is also a reversible change.

When water boils it changes it's state form liquid to gas. But it's chemical composition is the same.Also on cooling water vapor we can get the water again.So the change is reversible.So boiling of water is a physical change.