Chemical Substances Quiz

Which of the following is a pure substance?

• Muddy water

• Coffee

• Salt water

• Oxygen gas

What is the solvent in a solution of coffee and sugar?

• Sugar

• Coffee

• Water

• Salt

What is the type of mixture that is the same throughout?

• Emulsion

• Solution

• Colloid

• Suspension

What is the process of separating a solid from a liquid mixture by pouring off the liquid?

• Distillation

• Filtration

• Decanting

• Centrifuging

What is the type of colloid that contains small droplets of one liquid dispersed in another liquid?

• Gels

• Foams

• Aerosols

• Emulsion

What is the amount of solute that is able to dissolve in a particular volume of solvent at a particular temperature called?

• Supersaturated solution

• Unsaturated solution

• Saturated solution

• Solubility

What is the particle theory that states matter is made up of particles that are in constant motion?

• Molecular theory

• Particle theory

• Chemical theory

• Atomic theory

What is the process of purifying water using a special filter called a semi-permeable membrane?

• Decanting

• Filtration

• Distillation

• Reverse osmosis

What is the type of separation technique that uses a filter to separate a solid from a liquid mixture?

• Centrifuging

• Distillation

• Filtration

• Decanting

What is the substance that settles at the bottom of a liquid in a suspension called?

• Solute

• Solvent

• Colloid

• Sediment