We are asked which of the following properties of aluminum are chemical properties.
Physical property → Can be observed without changing the identity of the substance (does not require chemical change)
Chemical property → Can be observed only by changing the identity of the substance (requires chemical change)
Substances have both chemical properties and physical properties.
Which of the following properties of aluminum are chemical properties?
a) In moist air it combines with oxygen to form aluminum oxide.
b) It is a shiny, silvery white metal.
c) It reacts with chlorine to form aluminum chloride
d) It has a mass of 26.98 g.
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