Question

instructions: put a star (*) or a check (✓) in the correct column to classify the provided example. part 1: classify the following as a physical property or a chemical property. example physical property physical change chemical property chemical change density flammability wood burning resulting in a pile of ash reactivity an iron nail rusting crushing a can oxidation state a precipitate forming

Explanation:

Physical properties can be observed or measured without changing the substance's chemical identity. Chemical properties describe a substance's ability to undergo chemical changes. A physical change doesn't change the chemical composition, while a chemical change results in a new substance.

• Density is a physical property as it can be measured without altering the substance chemically.
• Flammability is a chemical property as it involves a substance burning and changing chemically.
• Wood burning to ash is a chemical change as new substances (ash) are formed.
• Reactivity is a chemical property as it involves chemical reactions.
• An iron nail rusting is a chemical change as iron oxide (rust) is a new substance.
• Crushing a can is a physical change as the can's chemical composition remains the same.
• Oxidation state is a chemical property related to chemical bonding and reactions.
• A precipitate forming is a chemical change as a new solid substance is created from a chemical reaction.

Answer:

Example	Physical Property	Physical Change	Chemical Property	Chemical Change
Flammability			X
Wood burning resulting in a pile of ash				X
Reactivity			X
An iron nail rusting				X
Crushing a can		X
Oxidation state			X
A precipitate forming				X