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Lets say I slapped you in the face. Your face would be red (possibly bleeding if I use my slapping gloves) and that would not be reversible (at least for the moment)
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∙ 13y ago
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How tyo recgonize chemical and physical change?
think if it can be reversed. if it is easially reversed, it is most likely physical. ie. if you bake a cake, you cant make it go back to a batter, so it is a chemical change. if you freeze an ice cube, you can just melt it and it goes back to water, so its a physical change.
Is a cooked rice is an example of physical change?
no cooked rice is not a physical change but is an example of chemical change as we cant obtain the raw rice after cooking it
What are the differences between the physical and chemical?
in changes. Physical changes can be reversed. E.g. if you were to melt a block of ice, and then freeze it again, it would to some degree be reversed. This is a physical change. However, if you were to burn a peace of toast, the change would be chemical. Once the toast is burnt you cant get it back.
Is a riping fruit an example of chemical or physical change?
Chemical, because you cant undo it
Is mealting an example of physical or chemical change?
it is a physical change most of the times because you can get i back into its original form. for ice, or plastic... its physical. but for styrofoam, its a chemical change because you cant get it back.
Does a physical or a chemical change?
A phsical change is something that can be changed but cant be changed back. for example: you can crumple a piece of paper but it is still paper. A chemical change means it has been changed perminetly so for example: If you burn the paper its ashes not paper. it was ashes but youy cant change it back into paper. Hope this helps :)
Is putting ice in a drink a chemical or physical change?
it is a physical if you can get it back but if you cant it is chemical
You cant figure out how to change your skill points into energy?
if you have placed skill points into anything already, thy cannot be reversed
What happens to matter when it undergoes a physical and chemical change?
A chemical change cant be undone and a new substance, so in other words you cant reverse the effects and in the end you get ashes. An example of a chemical change would be burning paper and getting ashes. A physical change can be undone. An example of a physical change would be bending the paper because you can still get the paper back and no new substance is created.
What is mechanical change?
is a change that you cant see
Is exploding of fireworks a physical or chemical change?
I guess it is a chemical change as the exploded fireworks cant be regained back which is possible in a physical change and not in a chemical change.
Are rotten leaves a physical or chemical change?
Both, but chemical dominates.
