These substances are called reactants.
The answer is true
The statement is false: A chemical change of a substance is defined as a change in which the substance is not the same substance after the change as it was before.
Yes because when a chemical change happens the substance may not have some of the physical or chemical properties it had once before. An example of htis would be Dry Ice. This would be an example because dry ice was once just ice then they add a chemical and it turns into dry ice.
A chemical change is a change of the identity of a substance. Or A chemical change is a change of the substances into a new substance.
chemical
Usually it means that something has gone through a physical change and any chemical properties of that substance are not altered.
A chemical change :).
No. In a physical change, the substance maintains its chemical composition.
The answer is true
Chemical change
Condensation is a physical change, as the chemical identity of the substance is not altered by condensation.
The statement is false: A chemical change of a substance is defined as a change in which the substance is not the same substance after the change as it was before.
Evaporation is an example of a physical change, as the chemical composition of the substance is not altered in any way.
Yes because when a chemical change happens the substance may not have some of the physical or chemical properties it had once before. An example of htis would be Dry Ice. This would be an example because dry ice was once just ice then they add a chemical and it turns into dry ice.
That change would be physical, since the chemical identity of the wood has not been altered by cutting it.
A chemical change is a change of the identity of a substance. Or A chemical change is a change of the substances into a new substance.
Reactivity