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Give one example of physical change that could be easily reversed?
Change of state from a liquid to a solid and back again.
What are three differences between physical and chemical changes?
(i) Physical change does not result in formation of new substances Chemical change result in formation of new substances (ii) Physical change is a temporary change Chemical change is a permanent change (iii) Physical change is reversible Chemical change cannot be reversed back (iv) e.g of Physical change-Dissolving of sugar in water to obtain a sugar solution e.g of Chemical change-Burning of sodium in chloride
Can neutralisation be reversed?
Yes you can reverse it by pouring back the acid.
What is difference between a physical property and a chemical property?
The easiest way to differentiate between chemical and physical properties are that almost all chemical properties are irreversible, meaning they can't go back to what they were before. A physical property is like what states of matter, shape, color, size, weight, etc. Chemical properties are properties that happen when there is a chemical reaction. Rust on iron, changing color of leaves, endo and exothermic reactions, and so on.
What is an example of a physical change that can be reversed?
A reversible change is when something can turn back into its original shape for example when ice is melted it turns into a liquid but then you can freeze it into a solid again do the change is reversible because it can change back into its original starter which is the ice in this case. But if you make a cake it is not reversible because all of the mixture has mixed together and it turns into one object this is called a chemical change. Also a reversible change is a physical change! Hope this helped ;)
What are example of a physical change that can be reversed and an example of a physical change that cannot be reversed?
an example of a physical change that can be reversed is like freezing water and letting melt back into water again
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.
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 water boiling a physical or a chemical?
It is a physical change because no new substance is being formed. It is still H20 and the steam when condensed can be reversed back to water. :)
Give one example of physical change that could be easily reversed?
Change of state from a liquid to a solid and back again.
Cutting up vegetables for a party is a example of a?
it is a physical change because no chemical propertys were changed if u really felt the need to u could find a way to put them back to their original shape -SARAH :)
Can a physical change be reversed?
yes they can because if you freeze water that doesn't prevent you from being able to change the water back into its original state
Is aluminum foil cut in half a physical or chemical change?
It is a physical change because it can be reversed. All you have to do is weld the foil back together!
Is running a car engine a chemical or physical change?
Chemical: hydrocarbons in the gasoline are burned.
What are three differences between physical and chemical changes?
(i) Physical change does not result in formation of new substances Chemical change result in formation of new substances (ii) Physical change is a temporary change Chemical change is a permanent change (iii) Physical change is reversible Chemical change cannot be reversed back (iv) e.g of Physical change-Dissolving of sugar in water to obtain a sugar solution e.g of Chemical change-Burning of sodium in chloride
What changes of matter occur in respiration?
A change is said to be physical if no new substances are formed. Physical changes are temporary and can easily be reversed to give back the substances in their previous form. Freezing of water is an example of a physical change. A change is said to be chemical if new substances with different properties are formed. Chemical changes are permanent and cannot be reversed to give back the substances in their previous form. Burning of paper is an example of a chemical change.
Is melting a physical or chemical property of sulfur?
Physical - because melting isn't a change in it's chemical structure, it has just changed its physical state of matter. Generally (but not always) physical changes are reversible (can be taken back) but chemical ones cannot be reversed easily.
