Mixtures and Solutions Review

What is evaporation?

• Evaporation is the process by which liquid turns into vapor, often used to separate a solute from a solvent in a solution.

• Evaporation is the process of a solid turning directly into a gas without becoming a liquid first.

• Evaporation is the process of a gas turning into a liquid when cooled.

• Evaporation is the process of mixing two liquids to form a solution.

What is filtration?

• A method to dissolve solids in liquids.

• A method used to separate solids from liquids or gases using a filter.

• A technique for mixing different gases together.

• A process of heating liquids to create vapor.

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 the difference between a mixture and a compound?

• A mixture is made of two or more substances that are not chemically combined, while a compound is a substance formed when two or more elements are chemically bonded together.

• A mixture is a single substance, while a compound is a combination of different elements.

• A mixture can be separated by physical means, while a compound cannot be separated by any means.

• A mixture has a fixed composition, while a compound does not.

What is the role of temperature in dissolving?

• Increasing the temperature usually increases the rate at which a solute dissolves in a solvent.

• Temperature has no effect on the rate of dissolving.

• Lowering the temperature increases the solubility of all solutes.

• Temperature only affects the solubility of gases.

What is a mixture?

• A combination of two or more substances where each substance retains its own properties and they are not chemically combined.

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

• A chemical reaction between two or more elements.

• A solution that has uniform composition throughout.

What happens to chocolate chips when heated?

• They remain solid and unchanged.

• They melt, changing their physical state from solid to liquid.

• They become crunchy and hard.

• They evaporate into the air.

What is a solution?

• A mixture where one substance is completely dissolved in another substance.

• A type of chemical reaction that produces gas.

• A solid substance that cannot dissolve in any liquid.

• A method of separating mixtures using filtration.

What is the best method to separate sand from water?

• Evaporation

• Filtration

• Centrifugation

• Distillation

What is the process of dissolving?

• Dissolving is the process where a solute mixes with a solvent to form a solution.

• Dissolving is the process of heating a substance until it evaporates.

• Dissolving is the process of separating a mixture into its individual components.

• Dissolving is the process of cooling a liquid to form a solid.