Separation of Mixtures and States of Matter

What physical changes occur to water when it is heated?

• Condensation and freezing
• Boiling and freezing
• Evaporation and boiling
• Melting and condensation

How can a simple particle model predict the effect of adding heat on a solid?

• The solid will melt
• The solid will freeze
• The solid will condense
• The solid will evaporate

What is the arrangement of particles in a solid?

• Random arrangement
• Loosely packed arrangement
• No arrangement
• Tightly packed arrangement

What are the limitations of using models to explain the properties of matter?

• Models are always accurate
• Models can oversimplify or omit important details
• Models are unnecessary
• Models simplify complex concepts

How can density be explained using a simple particle model?

• Density is determined by the size of particles
• Density is determined by the color of particles
• Density is determined by the arrangement of particles
• Density is determined by the shape of particles

How does the arrangement of particles in a liquid differ from that in a solid?

• Random arrangement
• Tightly packed arrangement
• No arrangement
• Loosely packed arrangement

What is the arrangement of particles in a gas?

• No arrangement
• Tightly packed arrangement
• Loosely packed arrangement
• Random arrangement

How can a simple particle model predict the effect of removing heat on a liquid?

• The liquid will evaporate
• The liquid will melt
• The liquid will freeze
• The liquid will condense

Why is water important as a solvent in daily life and industry?

• Water is not important as a solvent
• Water is readily available
• Water can dissolve many substances
• Water is inexpensive

What is a solute in relation to an aqueous mixture?

• The process of dissolving a substance in water
• The liquid in which the solute dissolves
• The substance that dissolves in water
• The substance that does not dissolve in water