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Well, a physical change is one that does not change the identity of a substance. So say if ice melts (a phase change from solid to liquid), it's still water; it hasn't morphed into something else. Phase changes are just changes in the way the molecules (or atoms) are arranged in space.
What else can I help you with?
Is freezing chocolate covered bananas chemical change or a physical change?
It is a Physical change. It's a physical change because the chocolate covering the bana froze, when a state of matter turns into a different state (for example an ice cube melting) it is considered a physical change.
Why is boiling water considered a physical change?
Because it physically changes from a liquid state to a gaseous state.
Is melting sulfur a physical change?
Yes. Any state changing is physical, unless it's a chrystal.
Is smoke a physical change?
It's not a physical change. Rather, it is a sign of an already completed chemical reaction.
Is the change of state a chemical or physical chenage?
A change of state is a physical change.
Which is A change in size shape or state of matter?
a change in size, shape or the state of matter is a physical change. True for A+.
Is dew forming on a window considered a chemical change?
No, it is considered a physical change because chemically, water is still H2O, it has simply changed state by condensing.
Does changes in a state of matter involve a physical change?
Yes, changes in state of matter involve physical changes because the substance retains its chemical composition. The change is simply a rearrangement of particles due to differences in energy levels or intermolecular forces, rather than a chemical reaction.
Are state changes physical or chemical changes?
State changes are physical changes because they involve a change in the physical properties of a substance, such as its form or state of matter (solid, liquid, gas). No new substances are formed during a state change, making it a physical change rather than a chemical change.
Why is boiling of water considered a phyiscal change?
Because physical state of water is changed from liquid to vapour.
Is change of state a chemical change?
No, change of state is a physical change.
Is the melting of an ice cube considered a physical change or chemical change Explain your reasoning?
The melting of an ice cube is considered both a physical change and a chemical change simply because a chemical change is something burning, so if the ice cube is cold and hot at the same time, it's both a physical change and a chemical change.
