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What are the characteristics of physical changes and chemical changes?
Wiki User
∙ 13y ago
A physical change is either a change of state (solid to liquid, liquid to gas, etc) or a change of shape (squeezing a piece of playdoh or plaster, screwing up a piece of paper).
A chemical change involves the production of a new substance, so it involves the rearranging of the atoms in molecules of a substance.
A physical change is relatively easy to reverse, a chemical change is hard or impossible to reverse. Signs a chemcial change has taken place include a permanent change of colour, bubbling meaning a gas has been produced, change of temperature, the appearance or disappearance of a material.
Examples of chemical change include burning toast, cooking an egg, setting concrete.
Wiki User
∙ 13y ago
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what involves both chemical and physical change on earths surface
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Is metamorphism physical or chemical changes?
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Are state changes chemical or physical changes?
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Are all physical changes accompanied by chemical changes?
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What are physical and chemical changes and how are they the same and how are they different?
Physical changes are changes in something that affects the objects physical characteristics. Meaning things like the color, shape, amount. Example: cutting a piece of paper, painting a wall, etc. Chemical changes change what the object is made of. It can change everything, including the state the object(or liquid) is in.
Chemical changes can be reserved by physical change?
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Are phase changes physical or chemical in nature?
A phase change is a physical change. It is not a chemical change.
Are all physical changes accompanied by a chemical change?
A physical change is a change in chemical composition. A physical change is a change where chemical composition is not altered. Not all chemical changes are accompanied by a physical change, but some are. The same is true for the reverse.
Which occurs more often on earth physical changes or chemical changes?
what involves both chemical and physical change on earths surface
Is physical and chemical changes a scientific method?
Chemical and physical changes are part of methods applied in science.
Why are change of state physical changes?
The identity of the property does not change so the physical properties change but not the chemical
Is Reactivity chemical or physical changes?
chemical
