Question

boiling and sublimation are physical change. why?​

Answer 1

Answer:

Because it doesn't affect the actual matter of the substance

Answer 2

Answer:

They both are physical change.

Explanation:

Sublimation is a physical change. When a substance sublimes, it changes from a solid to a gas without going through the liquid phase. This does not result in a chemical change, though. An example of a common substance that goes through sublimation is dry ice.

Boiling water is phase change or in other words a physical change.

The water( H2O ) is changing forms and becomes water vapor which is still H2O. After the change it is still water therefor making this change physical.

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