Pure Substances & Mixtures - Quiz#2 Prep - GJ

What is the term for the substance that is dissolved in a solution?

• A solvent
• A solution
• A mixture
• A solute

What is the term for the substance that does the dissolving in a solution?

• A solute
• A mixture
• A solvent
• A particle

In a simple solution of sugar and water, which substance is the solute?

• The water
• The mixture
• The container
• The sugar

In a simple solution of salt and water, which substance is the solvent?

• The salt
• The solution
• The particles
• The water

When making a cup of coffee with sugar, the coffee itself is considered the...

• Solute
• Mixture
• Solid
• Solvent

What is a uniform mixture of two or more pure substances called?

• A solute
• A solvent
• A particle
• A solution

A student claims that sugar "melts" when stirred into water. Why is this incorrect?

• Melting is a change of state from solid to liquid due to heat, while dissolving is mixing particles.
• The sugar is evaporating, not melting.
• Only salt melts, sugar dissolves.
• The sugar is the solvent.

What is the process called when the particles of a solute mix with the particles of a solvent?

• Melting
• Evaporating
• Dissolving
• Separating

According to particle theory, what must happen for a solute to dissolve in a solvent?

• The particles must be attracted to each other and bond.
• The particles must not be attracted to each other.
• The solvent must melt the solute.
• The solute must be hotter than the solvent.

What is a common example of two substances whose particles are NOT attracted and will separate?

• Salt and water
• Sugar and coffee
• Oil and water
• Matcha powder and water