a physical change
ex. change in state
This is a chemical change.
The chemical changes take place on moleculer space. A chemical change form (or) produce a new substance.
The chemical composition of the substance does not change when it changes its state of matter. The arrangement of atoms and molecules may vary, but the elements present in the substance remain the same.
Physical property of matter
By heating or freezing.
Because no chemical reaction is taking place. It is the same substance, just in a different state of matter.
Energy is the ability to cause a change in matter.
well the reason they do that is to see that if there are a lot of those kind of animals or if there is more of them.
PHYSICAL CHANGE - refers to the change in size, shape, or state of matter. CHEMICAL CHANGE - happens when one chemical substance is transformed into one or more different substance, such as iron becomes rust.
A chemical change in matter produces a new substance. A physical change, on the other hand, only alters the state or phase of matter without producing a new substance.
A change in matter that produces a new substance is called a chemical reaction. This involves the breaking and forming of chemical bonds between atoms to create different molecules with distinct properties.
Changes of the matter that do not change the composition of the substance.