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Physical changes, those changes that do not involve chemical changes or nuclear changes, can be reversed, though doing so may be difficult in some cases. To cite a single example, water can be frozen and then thawed. Or it can be boiled off and then condensed.
Wiki User
∙ 15y ago
Wiki User
∙ 12y agoThat depends on what kind of physical changes you're talking about. In genetics, physical changes are mostly beyond current science to reverse. In other sciences it depends on which branch of science you're talking about.
Wiki User
∙ 14y agoA Physical change is irreversible because in a physical change you can only see the colour, shape and appearance
Wiki User
∙ 13y agoYes. Physical changes are changes to the physical shape. The atoms are still the same. (Example: If you boil water, you can always get the water back.)
Wiki User
∙ 10y agoIf you cut an apple it is impossible to restore the apple; also for a broken glass bottle.
Wiki User
∙ 6y agoBy and Large, yes.
Wiki User
∙ 15y agoNormally, it can
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What kind of changes in substances are always physical changes?
The kinds of changes in substances that are always physical changes are changes in the state. This is the change from solid, to liquid and then to gas and the reverse.
Are all physical changes are reversible changes?
yes , all the physical changes are reversible changes.
Why are boiling and melting examples of physical changes?
You know if it's a chemical chagewhen two or more of the following have happened: 1. a precipitate has formed(bubbles) 2. heat is absorbed or released 3. there is a change in odor 4. there is a change in colour 5. the change is diffiult to reverse 6. starting material is used up 7. a material with new properties is formed A physical change may only be a change in state and the change should be easy to reverse
Is humidity a physical change?
Changes in humidity are physical, NOT chemical, changes.
What are phase changes?
its physical changes
Can chemical changes reverse by physical means?
No, physical
Is a chemical change easier to reverse then a physical change?
Nope. Physical changes are easier to reverse.
What occurs when the forward and reverse occur at the same rate?
the changes are physical
What kind of changes in substances are always physical changes?
The kinds of changes in substances that are always physical changes are changes in the state. This is the change from solid, to liquid and then to gas and the reverse.
What kinds of changes in substances are always physical change?
The kinds of changes in substances that are always physical changes are changes in the state. This is the change from solid, to liquid and then to gas and the reverse.
What two physical changes occurs at the same temperature?
The change is phase from solid to liquid and form liquid to gas (as well as changes in the reverse direction).
Explain Why physical changes can be reversed but chemical changes cannot?
Physical changes are generally easy to reverse because NO ENERGY is produced by the substance.A Chemical change cannot be reversed because ENERGY is produced by the substance forming a new substance.
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.
What is the difference between physical and chemical changes of matter?
Usually a physical change can be reversed such as fruit rotting. where as chemical change is very hard to reverse such as rust
If frost forms on a window is it a physical chang or a chemical?
Physical- that is water vapor freezing into ice. It can be reversed (warm up the window) Chemical changes don't reverse.
Which is easier to reverse chemical or a physical change?
It is easier to reverse a physical change.
Why physical changes can easily be reversed but why chemical cannot?
Physical changes are generally easy to reverse because NO ENERGY is produced by the substance.A Chemical change cannot be reversed because ENERGY is produced by the substance forming a new substance.
