Mixtures and Solutions

What is a mixture?

• A mixture is a combination of two or more substances that are not chemically bonded together.

• A mixture is a single substance made up of only one type of molecule.

• A mixture is a chemical reaction between two or more elements.

• A mixture is a solution where one substance is dissolved in another.

What is a solution?

• A mixture where two substances are combined without any interaction.

• A special type of mixture where one substance (solute) is dissolved in another (solvent).

• A chemical reaction that produces a new substance.

• A solid substance that cannot dissolve in any liquid.

How are mixtures and solutions different?

• In a mixture, substances retain their individual properties, while in a solution, the solute's properties change when dissolved.

• Both mixtures and solutions have the same properties.

• In a mixture, substances completely dissolve into one another.

• Solutions can be separated by physical means, while mixtures cannot.

What is an example of a solid mixture?

• A mixture of wood chips, sand, iron filings, and gravel.

• A solution of salt in water.

• A pure sample of gold.

• A gas mixture of oxygen and nitrogen.

What is an example of a solution?

• Saltwater, where salt (solute) is dissolved in water (solvent).

• Sand and water mixed together.

• Oil and vinegar salad dressing.

• Air, which is a mixture of gases.

What is a solvent?

• A substance that dissolves the solute in a solution.

• A type of chemical reaction.

• A solid that forms in a solution.

• A mixture of two or more liquids.

What happens when you mix sand and water?

• The sand dissolves completely in the water.

• You create a mixture where sand settles at the bottom and does not dissolve.

• The water evaporates and leaves the sand behind.

• The sand forms a gel-like substance with the water.

What is a solute?

• A substance that is dissolved in a solution.

• A liquid that dissolves other substances.

• A solid that cannot dissolve in any liquid.

• A gas that forms bubbles in a liquid.

What is a homogeneous mixture?

• A mixture that has a uniform composition throughout, like air.

• A mixture that contains different substances that are easily distinguishable.

• A mixture that is made up of only one type of substance.

• A mixture that can be separated by physical means.

What is a heterogeneous mixture?

• A mixture where the components are uniform and cannot be easily separated, like sugar in water.

• A mixture where the components are not uniform and can be easily separated, like a salad.

• A mixture that contains only one type of substance, like pure water.

• A mixture that is always in a gaseous state, like air.