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It is sometimes difficult to decide whether an observed change is physical or chemical because of its expression. Some reactions create subtle changes and some may appear to be physical or chemical until, upon closer observation externally or internally, it is actually turns out to be the opposite.

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โˆ™ 2014-10-06 20:20:00
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Q: Why is it sometimes difficult to decide whether an observed change is physical or chemical?
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Related questions

How do you decided whether an observed property of matter is a physical chemical property?

If the property can be observed without changing the chemical composition of the substance, then it is a physical property. If the property can be observed only through a chemical reaction, then it is a chemical property.


How do you decide whether an observed property of matter is a physical property?

If the property can be observed without changing the chemical composition of the substance, then it is a physical property. If the property can be observed only through a chemical reaction, then it is a chemical property.


How is chemical property different than a physical property?

A chemical property can only be observed by changing the chemical composition of the substance, while a physical property can be observed without a change in chemical composition.


Chemical or physical something you can observe?

Physical changes are those that can be observed.


Difference between physical property and a chemical property?

A physical property can be observed without changing the material's composition. A chemical property can only be observed when a chemical change takes place.


What is the different between the physical and chemical properties of a substance?

A physical property can be observed without changing the material's composition. A chemical property can only be observed when a chemical change takes place.


What is the difference between the physical and chemical properties of a substance?

A physical property can be observed without changing the material's composition. A chemical property can only be observed when a chemical change takes place.


How does physical property differs from chemical property?

A physical property can be observed without changing what the substance is made of. A chemical property can only be observed by altering a substance through a chemical change.


What is the diffence between physical and chemical properties as well an physical and chemical changes?

Physical properties can be observed without changing the chemical composition of a substance. Chemical properties can only be observed by changing the chemical composition of the substance. In a physical change, the chemical composition of the substance does not change. In a chemical change, the chemical composition of the substance changes.


What is the difference between the physical properties and the chemical properties of a substance?

A physical property can be observed without changing the material's composition. A chemical property can only be observed when a chemical change takes place.


What is the difference between the physical properties and chemical properties of a substance?

A physical property can be observed without changing the material's composition. A chemical property can only be observed when a chemical change takes place.


What is the difference between a chemical and physical properties of matter?

A chemical property can only be observed by causing a change in the chemical composition of the substance through a chemical reaction. A physical property can be observed without changing the chemical composition of the substance.

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