Matter and Change

Multiple Choice

Which of the following best describes a compound?

• A substance made of two or more different elements chemically combined

• A substance made of only one type of atom

• A mixture of elements and compounds

• A physical blend of two substances

Multiple Select

Which of the following are ways to represent a molecule of aspirin?

• Molecular model

• Space filling model

• Chemical formula

• Lewis structure

Multiple Choice

Which state of matter has a definite shape and definite volume?

• Solid

• Liquid

• Gas

• Plasma

Multiple Choice

In the image showing the kettle, which state of water is represented by the steam coming out of the spout?

• Solid

• Liquid

• Gas

• Plasma

Open Ended

Explain how the arrangement of particles differs between solids, liquids, and gases, using examples from the images.

Multiple Choice

Which process describes the change from a solid directly to a gas?

• Sublimation

• Condensation

• Melting

• Deposition

Open Ended

Explain how the temperature affects the phase changes of water as shown in the diagram.

Multiple Select

Which of the following are examples of physical properties?

• Mass

• Melting point

• Color

• All of the above

Multiple Choice

Which of the following is NOT an example of a physical change?

• Cutting

• Boiling

• Burning

• Dissolving

Multiple Choice

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

• Flammability

• Melting point

• Density

• Boiling point

Multiple Select

Which of the following are good indications that a chemical change has occurred?

• Color change

• Gas released

• Energy change

• All of the above

Open Ended

Describe the difference between a chemical property and a chemical change, using examples from the images.

Multiple Choice

What are the products of the combustion of methane?

• Carbon dioxide and water

• Methane and oxygen

• Hydrogen and oxygen

• Carbon monoxide and water

Open Ended

Explain how matter is classified according to the diagram, and give an example of each category.

Multiple Choice

Which of the following can be separated by physical means?

• Homogeneous mixtures

• Compounds

• Elements

• Pure substances

Open Ended

Explain the difference between a compound and an element, using examples from the classification chart.

Multiple Choice

Which of the following is an example of a homogeneous mixture?

• Mountain Dew

• Flower

• Sucrose

• Carbon

Open Ended

Describe what happens to the properties of water when it is decomposed into hydrogen and oxygen using the Hoffman Apparatus.

Multiple Select

Which of the following are diatomic elements?

• H2

• O2

• N2

• Cl2

Open Ended

After learning about matter, pure substances, and mixtures, what is one question you still have or something you would like to know more about?

Multiple Choice

What is the main difference between pure substances and mixtures?

• Pure substances have a fixed composition, while mixtures do not.

• Mixtures are always liquids, while pure substances are always solids.

• Pure substances cannot be separated, while mixtures can only be separated by chemical means.

• Mixtures have a fixed formula, while pure substances do not.