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Zorluk: ZorProperties of Matter

In laboratory science, matter is characterized by distinct physical, chemical, intensive, and extensive behaviors. Match each classification of matter or property on the left with its corresponding laboratory example on the right.

  • Intensive propertyBoiling point of pure ethanol at standard atmospheric pressure
  • Extensive propertyTotal heat capacity of a ten-liter sample of purified water
  • Chemical propertyTendency of metallic iron to oxidize when exposed to humid air
  • Physical changeDissolution of crystalline table sugar into distilled water

Cevap

Intensive property correctly pairs with the boiling point of pure ethanol; Extensive property pairs with the total heat capacity of a ten-liter water sample; Chemical property pairs with the tendency of metallic iron to oxidize; Physical change pairs with the dissolution of crystalline table sugar into distilled water.
The correct pairings accurately reflect foundational physical science definitions: intensive properties (boiling point) are independent of system mass; extensive properties (total heat capacity) depend directly on the amount of matter; chemical properties (oxidation potential) govern reaction behavior; and physical changes (dissolution) preserve molecular structure.

Adım Adım Çözüm

1
Differentiate intensive from extensive physical properties.
Intensive properties (such as boiling point) are invariant with sample mass, whereas extensive properties (such as total heat capacity) scale directly with quantity.
This establishes the fundamental distinction between intrinsic substance characteristics and bulk quantity-dependent measurements.
2
Evaluate the chemical property descriptor.
The tendency of iron to oxidize describes a reactivity characteristic that involves forming new chemical bonds.
Chemical properties can only be observed or measured by attempting to change the chemical identity of the substance.
3
Analyze the dissolution process.
Dissolving sucrose in water is a reversible physical transformation where molecular composition remains intact.
Since no chemical bonds within the sucrose molecules are created or destroyed, the process is classified as a physical change.

Anahtar Kavram

Classification of Matter: Intensive vs. Extensive Properties, Chemical Properties, and Physical Transformations
Tahmini Süre:1m 30s
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Properties of Matter

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