Which observation provides information about the chemical properties of a substance?
a
.
The substance is a liquid at 25 o C.
b
.
The substance has a density of 2.50 g/cm 3 .
c
.
The substance burns brightly in air.
d
.
The substance will not dissolve in water.
Solution:
a) The substance is a liquid at 25oC. - Information about the physical properties of a substance.
b) The substance has a density of 2.50 g/cm3. - Info about the physical propertiesof a substance.
c) The substance burns brightly in air. - Information about the chemical properties of a substance.
d) The substance will not dissolve in water. - Information about the physical properties of a substance.
Answer: c) The substance burns brightly in air.
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