Physical changes refer to changes of state: solid to liquid or liquid to gas (or vice versa). The chemical structure of the substance does not change, only the amount of energy it contains.
The expansion of matter upon heating is an example of a physical change. This is because the substance undergoes a change in form or appearance without forming a new substance.
when a pure substance undergoes a chemical change it is no longer that same substance. A chemical change changes the identity of the substance. Hope i helped
The freezing point is a physical property because it describes a characteristic of a substance (temperature at which it freezes) without changing the chemical composition of the substance. When a substance freezes, it undergoes a physical change from a liquid to a solid, not a chemical change.
During a physical change, the chemical makeup of matter remains the same. The atoms and molecules that make up the substance do not change their identities, only their arrangement or state. This means that no new substances are formed during a physical change.
The chemical properties of a substance change during a chemical reaction, meaning the substance undergoes a chemical change and forms new substances with different properties. The physical properties may also change, such as color, texture, or state of matter.
The chemical composition of a substance does not change when it undergoes a physical change.
Physical change.
It does change its physical look but it does not change chemically.
It does change its physical look but it does not change chemically.
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when a pure substance undergoes a chemical change it is no longer that same substance. A chemical change changes the identity of the substance. Hope i helped
After a physical change a substance does not change its chemical composition it simply changes its state as, water to ice or vapours.
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when a pure substance undergoes a chemical change it is no longer that same substance. A chemical change changes the identity of the substance. Hope i helped
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The chemical make up of a substance does not change. It must remain the same combination of atoms or molecules to be considered only a physical change.