Mixtures and Solutions Review

What does it mean to separate?

• To divide or keep apart.

• To combine or join together.

• To ignore or overlook.

• To enhance or improve.

What is a solution?

• A mixture where one substance is dissolved in another, like lemonade.

• A solid substance that cannot dissolve in any liquid.

• A type of chemical reaction that produces gas.

• A mixture of two or more solids that do not interact.

What is a mixture?

• A combination of two or more substances that keep their own properties.

• A single substance that cannot be separated into its components.

• A solution where one substance completely dissolves in another.

• A chemical reaction between two or more substances.

How can you separate iron fillings from sand?

• You can use a magnet to separate iron fillings from sand.

• You can use water to dissolve the sand.

• You can use a sieve to filter the iron fillings.

• You can use heat to melt the sand.

What is the difference between a mixture and a solution?

• A mixture has one substance dissolved in another, while a solution retains the properties of its components.

• A mixture retains the properties of its components, while a solution has one substance dissolved in another.

• A mixture is always a solid, while a solution can be a liquid or gas.

• A mixture is a homogeneous combination, while a solution is a heterogeneous combination.

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 has varying properties in different parts.

• A mixture that cannot be separated by physical means.

What happens when you mix sand and water?

• You create a mixture that can be separated by evaporation.

• You create a solid block that cannot be separated.

• You create a gas that evaporates immediately.

• You create a new compound that changes color.

What is an example of a solid mixture?

• Granite is a solid mixture of different minerals.

• Water is a solid mixture of different minerals.

• Air is a solid mixture of different minerals.

• Sugar is a solid mixture of different minerals.

Can you separate a solution?

• Yes, solutions can be separated by physical means.

• No, solutions cannot be separated by physical means like mixtures.

• Yes, solutions can be separated using filtration.

• Yes, solutions can be separated by evaporation.

What is the role of a solvent in a solution?

• The solvent is the substance that dissolves the solute, like water in saltwater.

• The solvent is the solid component of a solution.

• The solvent is the gas that forms bubbles in a liquid.

• The solvent is the colorant added to a solution.