Physical changes are reversible changes, such as change of state (boiling, melting etc), chemical changes are when something undergoes a reaction changing it's chemical makeup.
Okay now here goes in a physical change no chemical reaction takes place. in chemical change chemical reactions take place. A physical change is reversible but a chemical change is not.In a physical change no new substance is formed(A+B=B) in a chemical change new substances are formed(A+B=C)
Both chemical and physical changes involve a transformation of matter. In physical changes, the substance's chemical composition remains the same, while in chemical changes, new substances are formed as a result of a chemical reaction. Both types of changes involve the absorption or release of energy.
physical or chemical changes
A chemical property of matter, such as reactivity or flammability, remains unchanged during a physical change because physical changes only alter the state or appearance of a substance without affecting its chemical composition. For example, when ice melts into water, the chemical properties of H₂O remain the same, even though its physical form has changed. This distinction is crucial in understanding the differences between chemical and physical changes in matter.
Well, darling, a physical change involves a change in appearance, like cutting a piece of paper, while a chemical change involves a change in composition, like burning that paper to ash. So, in simpler terms, physical changes are like a makeover, just changing the looks, while chemical changes are like a complete transformation, changing what's on the inside. Just remember, physical changes are skin-deep, but chemical changes go straight to the core.
Physical changes are melting and boiling in this case; fire is a combustion, a chemical change.
Physical changes involve a change in appearance or state of matter without altering the chemical composition, while chemical changes result in the formation of new substances with different chemical properties.
Physical changes involve a change in appearance, shape, or state without altering the chemical composition of the substance. Chemical changes, on the other hand, result in the formation of new substances with different chemical properties. Physical changes are usually reversible, while chemical changes are usually irreversible.
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.
Okay now here goes in a physical change no chemical reaction takes place. in chemical change chemical reactions take place. A physical change is reversible but a chemical change is not.In a physical change no new substance is formed(A+B=B) in a chemical change new substances are formed(A+B=C)
the difference between a physical change and a chemical change is that a physical change is usually reversible whilst a chemical change is not reversible.
the difference between a physical change and a chemical change is that a physical change is usually reversible whilst a chemical change is not reversible.
During a chemical change the molecule is transformed; during a physical change the molecule is not transformed.
You can tell the difference by knowing that a physical property changes shape and that a chemical property changes the substance.
A physical change changes the physical properties of an element like color where chemical changes change the chemical properties of an element and usually can't be undone.
Both chemical and physical changes involve a transformation of matter. In physical changes, the substance's chemical composition remains the same, while in chemical changes, new substances are formed as a result of a chemical reaction. Both types of changes involve the absorption or release of energy.
There are no physical changes. there are only chemical changes.