Solutions & Reactions

Front

What is a solvent?

Back

A solvent is a substance that dissolves a solute, resulting in a solution. Water is a common example of a solvent.

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What is solubility?

Back

Solubility is the ability of a substance (solute) to dissolve in a solvent at a given temperature and pressure.

Front

What is a solute?

Back

A solute is a substance that is dissolved in a solvent to form a solution. For example, salt is the solute when dissolved in water.

Front

What is the role of a catalyst in a chemical reaction?

Back

A catalyst is a substance that increases the rate of a chemical reaction without being consumed in the process.

Front

What happens to molecules in a solid when energy is added?

Back

When energy is added to a solid, its molecules gain energy and move around more, potentially leading to a change in state.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.

Front

What is an example of a chemical reaction?

Back

An example of a chemical reaction is the reaction between vinegar and baking soda, which produces carbon dioxide gas.

Front

What is the significance of temperature in solubility?

Back

Temperature can affect the solubility of a substance; generally, higher temperatures increase the solubility of solids in liquids.

Front

What is a saturated solution?

Back

A saturated solution is a solution that has reached the maximum amount of solute that can dissolve at a given temperature.

Front

What is the difference between an endothermic and exothermic reaction?

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An endothermic reaction absorbs heat from the surroundings, while an exothermic reaction releases heat.