Classify the following properties as chemical or physical properties?

[la lakers rox my soxs!!!!]

a. blue-gray color
b. brittle
c. insoluble in water
d. reacts vigorously with fluorine

[polkadot2212]

a.) physical
b.) physical
c.) physical
d.) chemical

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.

[The Andyman Can]

a. physical
b. physical
c. chemical
d. chemical

As a general rule, if you can observe it, it's probably physical.

[theDude]

A. Physical
B. Physical
C. Chemical
D. Chemical

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.

[Max]

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