Open Question
Describe each of the following as a physical or chemical property:b. Apple slices turn brown when they are exposed to air.
3. Matter and Energy
Physical Properties
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Which of the following is not a physical property?
A
The brittleness of solid sulfur.
B
The density of iron is 7.87 g/cm3
C
A platinum wire glows red when heated.
D
smium is a silver-colored metal.
E
An iron bar rusts.
Verified step by step guidance1
Understand the definition of a physical property: Physical properties are characteristics of a substance that can be observed or measured without changing the substance's chemical identity. Examples include color, density, and state of matter.
Review each option to determine if it describes a physical property: Brittleness, density, color, and the ability to glow when heated are all physical properties because they can be observed without altering the chemical composition of the substance.
Consider the process of rusting: Rusting is a chemical reaction where iron reacts with oxygen and moisture to form iron oxide. This process changes the chemical identity of iron, indicating that rusting is a chemical property.
Identify the option that describes a chemical change: Since rusting involves a chemical reaction and changes the substance's chemical identity, it is not a physical property.
Conclude that the correct answer is the option describing rusting, as it is a chemical property rather than a physical property.
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