Mixtures and Solutions

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of an object without altering its chemical composition, such as cutting or folding paper.

Front

What is the solute in a solution?

Back

The solute is the substance that is dissolved in a solution, typically present in a smaller amount compared to the solvent.

Front

What is evaporation?

Back

Evaporation is the process by which a liquid turns into a gas when heat is added, often occurring at the surface of the liquid.

Front

What equipment is typically used to separate a solution of salt and water?

Back

A hot plate can be used to heat the solution, causing the water to evaporate and leaving the salt behind.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances where each retains its own physical properties and can be separated by physical means.

Front

What is the difference between a mixture and a solution?

Back

A mixture is a combination of substances that can be separated, while a solution is a homogeneous mixture where one substance (solute) is dissolved in another (solvent).

Front

What is a solvent?

Back

A solvent is the substance in which the solute is dissolved to form a solution, usually present in a larger amount.

Front

What happens to the boiling point of a solution compared to its solvent?

Back

The boiling point of a solution is typically higher than that of the pure solvent due to the presence of solute particles.

Front

What is filtration?

Back

Filtration is a physical separation method used to separate solids from liquids or gases using a filter.

Front

What is concentration in terms of solutions?

Back

Concentration refers to the amount of solute present in a given volume of solvent or solution, often expressed in molarity.