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Because the substance is physically changing.
What else can I help you with?
What are phase changes?
its physical changes
Are phase changes physical or chemical in nature?
Phase changes are physical changes in nature. They involve a change in the state of matter (solid, liquid, gas) rather than a change in the chemical composition of the substance. Heating or cooling a substance can trigger phase changes.
What are changes in phase physical changes?
Because it changes its form.
Are phase changes in chemistry physical changes?
YES
Is phase changes physical or chemical?
Phase changes are physical changes, not chemical changes. They involve a change in the state of matter (solid, liquid, gas) without altering the chemical composition of the substance.
All changes in a phase are what?
the phases can be changed from a liquid, gas, or solid
When water changes phase is it chemical or physical?
Physical, as it remains water.
When a substance changes from one physical form to another you say the substance has had a what?
When a substance changes from one physical form to another, you say the substance has had a phase change or undergone a phase transition.
Is melting ice a physical change or chemical change?
Physical; all phase changes are physical changes because the composition does not change.
How can you tell if a physical reaction is occuring?
During a physical change the chemical molecule is not affected; physical changes are changes of phase or form.
Are melting butter and melting ice cream are both physical change or chemical change?
They're both physical changes. Phase changes are always physical changes. Chemical changes only involve chemical reactions - a change in the identity of the substance. That's why phase changes are physical changes. Ice cream remains ice cream when it melts.
How does the physical property of water change?
For example after phase changes.
