a reaction
Physical because it is still Oxygen. A chemical change results in a chemical equation and thus a new substance. No new substance = no chemical change. Liquefaction is a physical property.
It is both physical and chemical change as it changes its appearance , and it results in a new substance also
a physical change is a change in any physical property of a substance, not in the substance itself
a physical change is a change in any physical property of a substance, not in the substance itself
Physical changes in a substance result in
a physical change will only alter the appearance but will NOT change the substance to another substance =)
it would be physical change because physical change is when the substance stays the same
During a phase change, the substance transitions between different states of matter (solid, liquid, gas) without any change in the chemical composition of the particles involved. This means that there is no new substance formed and no chemical change taking place, it is solely a physical change.
it would be physical change because physical change is when the substance stays the same
it would be physical change because physical change is when the substance stays the same
The most important question to ask is whether the change results in a new substance being formed. Physical changes involve a change in appearance, state, or size of a substance without forming a new substance. Chemical changes involve a reaction that results in the formation of new substances with different chemical properties.
No. The whole idea of a physical change is one which does not alter the nature of the substance.