Properties of Liquids and Gases

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Questions and Answers

What property of liquids explains why they take the shape of their container?

  • Density
  • Surface tension
  • Attraction between particles (correct)
  • Viscosity

What describes viscosity in liquids?

  • A force acting on surface particles
  • A liquid's resistance to flow (correct)
  • A measure of temperature
  • The ability to form beads

What phenomenon occurs due to surface tension in liquids?

  • Creation of vapor
  • Definite volume
  • Conductivity
  • Spherical drops or beads formation (correct)

How does the attraction between particles in liquids compare to that in gases?

<p>Stronger in liquids (C)</p> Signup and view all the answers

What happens to a liquid if the attractions between its particles become stronger?

<p>It becomes more viscous (A)</p> Signup and view all the answers

What characteristic distinguishes solids from liquids?

<p>Particles are tightly packed (D)</p> Signup and view all the answers

Which statement is true regarding gas particles?

<p>They move very quickly with low attraction (C)</p> Signup and view all the answers

What is the definition of mass in the context of matter?

<p>Measure of the amount of matter an object has (C)</p> Signup and view all the answers

How do liquids differ from gases in terms of particle attraction?

<p>Liquid particles have higher attraction than gas particles (C)</p> Signup and view all the answers

What is a characteristic of molecules according to the molecular theory of matter?

<p>Molecules are constantly moving (C)</p> Signup and view all the answers

Which statement about matter is true?

<p>Matter includes any object that has both mass and volume (B)</p> Signup and view all the answers

Which of the following correctly describes a molecule?

<p>A particle made of two or more atoms combined (B)</p> Signup and view all the answers

Who contributed to the understanding that all matter is composed of particles called atoms?

<p>Leucippus and Democritus (C)</p> Signup and view all the answers

What happens to particles when a solid melts into a liquid?

<p>They gain energy and overcome some attractions (B)</p> Signup and view all the answers

What principle is emphasized by the kinetic molecular theory of matter?

<p>There are spaces between particles and they are in motion (B)</p> Signup and view all the answers

Flashcards

Atom

The smallest particle of an element that retains its chemical properties.

Atomic Theory

Matter is composed of tiny, indivisible particles called atoms.

Particulate Nature of Matter

Matter is made up of tiny particles (atoms or molecules).

Molecule

A group of two or more atoms bonded together.

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Matter

Anything that has mass and volume.

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Molecule definition

A molecule is a group of two or more atoms bonded together.

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Solid particles

Solid particles are tightly packed and vibrate in place.

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Liquid particles

Liquid particles move, overcoming some attractions.

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Gas particles

Gas particles move very fast, with little attraction.

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Particle Theory

Particle theory explains the behavior of matter at the atomic level; it explains the properties by how particles behave.

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Liquid Particle Attraction

The forces between liquid particles are stronger than those in a gas.

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Liquid Shape

Liquids take the shape of their container.

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Surface Tension

A force acting on liquid surface particles, making it behave like a stretched skin.

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Viscosity

A liquid's resistance to flowing.

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Spherical Drops

Some liquids, like water, form round shapes due to surface tension.

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