Asked by yj

To observe a (fill in the blank) property of a substance, the substance must interact with another substance, such as when gasoline burns or when sodium metal reacts with water.

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Answered by GPT-5 mini AI
"chemical" — To observe a chemical property the substance must undergo a chemical change (interact with another substance). Examples: flammability (gasoline burns), reactivity with water (sodium), tendency to rust (iron oxidizes). Physical properties (melting point, density, color) do not require forming new substances.