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It Looks like your tryhing to cheat on Science TeeHee
Chemical changes cannot be reversed but phyical changes can !
I disagree. Some chemical changes can be reversed.
If you boil off the water and catch it in a container when it evaporates, the water will be back. If you then look at the bottom and possibly sides of your beaker there will be only salt left behind.
Wiki User
∙ 11y ago
DragonClaw Blades
Wiki User
∙ 11y agoYes it can; you simply have to reverse the reaction (upset Equilibrium); using whatever means you have available. All Chemical Reactions are reversible.
Another OpinionActually the definition of a chemical change briefly is a change that changes the substance and can not be reversed back to the original substance. Chemical changes are not reversible. Think of it, if I make a cake and put it in the oven to cook, could I get the cake batter back? It is basic logic.
Wiki User
∙ 13y agoNO
MNO4 <--> Mn + 2O2 is easily reversible with the right heat source and containment.
but pushing a car down the highway in reverse doesn't make gasoline.
Wiki User
∙ 14y agoYusuf Alqublan
Physical changes are reversible and chemical changes are too but are very rare.
Wiki User
∙ 13y agoYes, they can.
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What is a the difference between a chemical and physical change?
A physical change can be reversed such as an ice cube melting. A chemical change, on the other hand, cannot be reversed such as burning wood.
Is combustion a physical change?
NO its a chemical change for it can't be reversed
What type of change is an eyeshadow physical or chemical?
it is chemical because it can not be reversed
When a kettle is boiled you can tell it is NOT chemical change because?
the change is easily reversed so it is a physical change not a chemical change
Explain what a chemical change is?
a chemical change is a change which brings about a change in the chemical properties of a substance which cannot be reversed through physical means like heating or cooling.
What is a the difference between a chemical and physical change?
A physical change can be reversed such as an ice cube melting. A chemical change, on the other hand, cannot be reversed such as burning wood.
Is combustion a physical change?
NO its a chemical change for it can't be reversed
What type of change is an eyeshadow physical or chemical?
it is chemical because it can not be reversed
Is rusting a phsyical change?
Rusting is a chemical change because under it iron goes under oxidation and oxidation is a chemical process. Also, a physical change can be reversed but a chemical change cannot and rusting cannot be reversed. Hence also rusting is a chemical change.
Burning is what form of change?
it is a chemical change because it cannot be reversed
When a kettle is boiled you can tell it is NOT chemical change because?
the change is easily reversed so it is a physical change not a chemical change
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.
Explain what a chemical change is?
a chemical change is a change which brings about a change in the chemical properties of a substance which cannot be reversed through physical means like heating or cooling.
Is an egg a chemical change?
Yes, it is, because it cannot be reversed.
Why chemical reaction can't be normally reversed?
becoz the chemical reaction is irreversible to change it.............
Is a given change a chemical or a physical change?
It depends. Physical can be easily reversed. Chemical is hard, if not impossible to reverse.
Is bursting of explosive considered a physical change or a chemical change?
Well a chemical change cannot be reversed while a physical change can be, what do you think??
