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No, not always. But mostly.
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∙ 11y ago
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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
Is melting ice a chemical or physical change explain?
It is a physical change because when you have a chemical change it changes the properties and makes it into a new thing, and it can't be reversed. Physical changes are usually just changes of states (solid, liquid, gas) and a physical change can be reversed.
Is melting iron into liquid a chemical change?
No, all changes of state are physical, never chemical. It always can be reversed by temperature change only and no other compound are involved.
Is molded clay physical or chemical change?
physical, because it can be easily reversed
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
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
Evaporation a physical change?
Yes, because it can be reversed by condensation. Physical change = Reversible Chemical change = Irreversible
Is transferring graphite from pencil to paper when writing a chemical or physical change?
physical change. You know that it is a physical change because it can be reversed. An example of a chemical change would be cooking an egg. Because you cannot reverse the process.
Is melting ice a chemical or physical change explain?
It is a physical change because when you have a chemical change it changes the properties and makes it into a new thing, and it can't be reversed. Physical changes are usually just changes of states (solid, liquid, gas) and a physical change can be reversed.
Is melting iron into liquid a chemical change?
No, all changes of state are physical, never chemical. It always can be reversed by temperature change only and no other compound are involved.
Is molded clay physical or chemical change?
physical, because it can be easily reversed
Is melting ice cubes a chemical or physical change?
Its a physical change because it can be reversed by re-freezing the water.
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??
How is sour milk a chemical change?
milk going sour is a chemical change because it can't be reversed. Most physical changes can be reversed for example snow melting is a physical change because it can freeze again.
