Honors Chemistry Solutions Test

What does a heterogeneous mixture always contain?

• Two or more substances that are not visibly distinguishable.

• Only one substance.

• Two or more substances that are visibly distinguishable.

• More than two substances.

What type of solute-solvent combination is carbon dioxide dissolved in water?

• Gas-liquid

• Liquid-gas

• Liquid-liquid

• Cannot be determined

What solute-solvent combination is sugar dissolved in water?

• solid-liquid

• gas-liquid

• liquid-liquid

• cannot be determined

Oxygen in nitrogen is an example of which solute-solvent combination?

• Liquid-gas

• Gas-liquid

• Gas-gas

• Solid-gas

Which type of mixture contains visible particles that settle out unless the mixture is stirred?

• A suspension

• A colloid

• A homogeneous mixture

• A solution

What is a metal solution commonly known as?

• Colloid

• Alloy

• Emulsion

• Suspension

The Tyndall effect is used to distinguish between which two types of mixtures?

• Liquids and gases.

• Solutions and colloids.

• Electrolytes and nonelectrolytes.

• Solvents and solutes.

What type of substance is known for being a good conductor of electricity when dissolved in water?

• Nonpolar substance.

• Electrolyte.

• Nonelectrolyte.

• Solute.

Which of the following actions does NOT increase the rate of dissolving a solid in water?

• Raising the temperature of the water

• Stirring the solution

• Crushing the solid

• Using larger pieces of solid

If the amount of solute present in a solution at a given temperature is less than the maximum amount that can dissolve at that temperature, the solution is said to be:

• saturated

• unsaturated

• supersaturated

• concentrated