FOSS: Mixtures and Solutions Investigation 1 Review

What is a mixture?

• A combination of two or more substances where each substance retains its own properties.

• A substance that cannot be separated into its components.

• A chemical reaction between two or more elements.

• A solution that has uniform composition throughout.

What is the difference between a homogeneous and heterogeneous mixture?

• A homogeneous mixture has a uniform composition, while a heterogeneous mixture has visibly different substances.

• A homogeneous mixture contains only one type of substance, while a heterogeneous mixture contains multiple types of substances.

• A homogeneous mixture can be separated by physical means, while a heterogeneous mixture cannot.

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

Is trail mix a mixture or a solution?

• Trail mix is a solution.

• Trail mix is a mixture.

• Trail mix is a compound.

• Trail mix is a suspension.

Can a mixture be separated by physical means?

• Yes, mixtures can be separated by physical means, such as filtering or evaporating.

• No, mixtures can only be separated by chemical means.

• Mixtures can be separated only by heating them to extreme temperatures.

• Mixtures cannot be separated at all.

What happens to the salt when water evaporates from a saltwater solution?

• The salt dissolves in the air.

• The salt is left behind as the water evaporates.

• The salt turns into gas.

• The salt forms a new solution with the remaining water.

What is evaporation?

• The process where liquid turns into vapor, often leaving solid substances behind.

• The process of water freezing into ice.

• The process of gas turning into liquid.

• The process of solid turning into gas.

What is a solution?

• A solution is a type of solid mixture.

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

• A solution is a mixture of gases only.

• A solution is a type of liquid that cannot dissolve any substances.

What happens to the properties of substances in a mixture?

• The properties of each substance in a mixture remain unchanged.

• The properties of substances completely change in a mixture.

• The properties of substances are enhanced in a mixture.

• The properties of substances are lost in a mixture.

What is a solute?

• A substance that is dissolved in a solution.

• A liquid that dissolves other substances.

• A mixture of two or more substances.

• A solid that cannot dissolve in any liquid.

What is concentration in a solution?

• The temperature at which a solution boils.

• The amount of solute present in a given volume of solvent.

• The color of the solution.

• The pressure exerted by the solute in the solution.