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Classify the following properties as chemical or physical properties?
a. blue-gray color
c. insoluble in water
d. reacts vigorously with fluorine
chemical properties are properties that are apparent when a chemical change occur and change the identity of the substance, while physical properties do not change the identity of a substance. solubility is a physical property because when you dissolve a compound like salt in water you are not changing its chemical composition.
As a general rule, if you can observe it, it's probably physical.
A general rule is that a physical property is something that you can observe with your naked eye, i.e. a color. Chemical properties can't always be observed without a microscope, and involve chemical reactions.
Chemical will mean that something will happen to them, a reaction might occur. While physical is just their standard properties.
A and B are Physical
C and D are Chemical
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