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Yes, it can be brought back to solid by cooling. Because butter has only changed its state, which is a type of physical change. But some substances solids change their chemical composition instead of changing to liquid form, like Sugar. Sugar on heating turns red then black. Sugar cannot be brought back to its white solid form by cooling.
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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
Why is burning butter a chemical change but melting is not?
Heating is an increase in energy in a substance. Heat is merely the measure of excitation of atoms or molecules, and as such heating a substance does not usually change anything chemically, unless you have a very unstable chemical (E.g. Argon Fluoride doesn't function above -233 Celsius.
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.
A popsicle melting is physical or chemical change?
Melting is a physical change.
Is the melting point of butter a physical or chemical property?
The physical properties of butter include soft and in some cases, liquid. This depends on what type of butter it is.
What is a phyisical change?
melting butter cause you can freeze it back
Is the burning of leaves or melting of butter a physical reaction?
The burning of leaves is a chemical reaction. The way we can tell is because after the leaves are burned, they cannot go back to the way they were. Butter melting is a physical reaction because it does not change the molecules, and the butter has the ability to go back to it's original state.
Is welding pieces of metal is chemical change?
not it can always be changed back to its original shape. but if you burn metal which i dont consider doing it is a chemical change. like melting butter and burning butter. burning is chemical, melting can be cooled again into its original form.
Is melting butter for popcorn a phiscal change?
Physical because once you melt it you can put it in a fridge and it will go back to the original state from before you melted it
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
Is Warming butter an irreversible change?
Yes as once melted you cannot get the same substance back. Think about putting butter onto your toast it changes its texture completely! thanks for that.... it is irreversible because anything that is cooked;it candt be reversed(:
Why is burning butter a chemical change but melting is not?
Heating is an increase in energy in a substance. Heat is merely the measure of excitation of atoms or molecules, and as such heating a substance does not usually change anything chemically, unless you have a very unstable chemical (E.g. Argon Fluoride doesn't function above -233 Celsius.
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.
Why is Breaking of glass a physical change?
A physical change can be reversed, for it does not change what the object is made of. The glass, even when broken, is still glass. It can be put back into its original state (possibly through melting) because it never changed what it was made out of.
What are 4 signs that a physical reaction took place?
A change in state. It can always be changed back into its origanal state. (Ex. Melting, boiling, evaporation, freezing) Other ex. melting butter, shredding paper, mowing the grass, or liquid water to ice
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 ;)
Why is a firework an example of a chemical change in a fourth grade answer?
A chemical change can not be reversed. Obviously the fire work can not be put back together because it has reacted, not being able to be reversed, and therefore, being classified as a chemical change.
