Answered

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

A. Physical change because even though the change caused the temperature of the water to increase, the water's physical properties remained exactly the same.
B. Physical change because even though gas formation was observed, the water was undergoing a state change, which means that its original properties are preserved.
C. Chemical change because gas formation was observed, which indicated that the water was transformed into a different substance.
D. Chemical change because a temperature change was observed, which indicated that the water was transformed into a different substance.

Sagot :

GinnyAnsweridn

Final answer:

Boiling water demonstrates a physical change as the molecular structure remains the same despite phase alterations.


Explanation:

Physical change: boiling and melting do not break or form bonds, maintaining the substance's molecular structure. For instance, when water boils (H2O(l) → H2O(g)), it undergoes a physical change.

Chemical change: a chemical change involves transforming substances into different ones. Gas formation in water doesn't alter its molecular composition, signifying a physical, not chemical, change.

Phase change: altering temperature can trigger phase changes, like liquid water becoming water vapor, without altering the substance's identity.


Learn more about Physical and Chemical Changes here:

https://brainly.com/question/38267226


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