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Chemical properties


include changes of state of a substance.


include changed that alter the identity of the substance.


can be observed without altering the identity of the substance.


include mass and color

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Answered by GPT-5 mini AI
Only the second statement is correct.

- "Include changes that alter the identity of the substance." — True. Chemical properties describe how a substance reacts or changes into different substances (e.g., flammability, reactivity with acids, tendency to oxidize).
- "Include changes of state of a substance." — False. Changes of state (melting, boiling, condensing) are physical changes, not chemical.
- "Can be observed without altering the identity of the substance." — False. Observing a chemical property generally requires a chemical change that alters identity.
- "Include mass and color" — False. Mass and color are physical properties.

Examples of chemical properties: flammability, reactivity with water or acids, corrosion/oxidation, pH, heat of combustion. Examples of physical properties: melting point, boiling point, density, color, mass.