Exploring Matter and Solutions Quiz

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What is the main difference between an element and a compound?

• An element is made of one type of atom, while a compound is made of two or more types of atoms.

• An element is a mixture of different substances, while a compound is a pure substance.

• An element can be broken down into simpler substances, while a compound cannot.

• An element is always a solid, while a compound can be a liquid or gas.

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What effect does increasing the surface area of a solute have on its rate of dissolution?

• It decreases the rate

• It has no effect

• It increases the rate

• It stops the dissolution

What happens to the concentration of a solution when more solute is added?

• It decreases

• It remains the same

• It increases

• It becomes zero

Which of the following is an example of a physical change?

• Burning wood

• Rusting iron

• Melting ice

• Baking a cake

Which of the following is a compound?

Which of the following is an example of a chemical change?

• Boiling water

• Dissolving salt in water

• Burning a candle

• Breaking a glass

What is the role of agitation in the dissolution of a solid solute in water?

• It decreases the rate of dissolution

• It has no effect

• It increases the rate of dissolution

• It stops the dissolution

Which process is a chemical change?

• Dissolving sugar in water

• Freezing water

• Digesting food

• Cutting paper