Review of Matter

Multiple Choice

Are these particles in a solid, liquid, or gas?

• Solid

• Liquid

• Gas

Multiple Choice

Are these particles in a solid, liquid, or gas?

• Solid

• Liquid

• Gas

Match

Match the particle images to their correct state of matter

Solid

Liquid

Gas

• Solid

• Liquid

• Gas

Multiple Choice

Which glass contains ONLY a gas?

Multiple Choice

Which of the following diagram correctly represents the phase change from ice to water?

Multiple Choice

Which of the following happened between 50 and 60 minutes?

• Solid water is changed into liquid water

• Liquid water is changed into water vapor

• Solid water is changed into oxygen and hydrogen gas

• Liquid water is changed into oxygen and hydrogen gas

Multiple Choice

Which of these forms of water has the GREATEST kinetic energy?

• Boiling water

• Melting water

• Freezing water

• Condensing water

Multiple Choice

Which of the following statements is NOT true of all different types of matter?

• They are made of atoms and molecules
• The particles are always in motion
• The particles always move at the same speed
• They are made of particles that are too small to see

Multiple Choice

Common kitchen appliances include electric stoves, toasters and blenders. Each appliance uses an energy source and involves energy changes to prepare food.

An open pot of water is heated on the stove. As water boils, the molecules _________

• Move slower and closer together

• Move faster and further apart

• Get larger

• Get smaller

Multiple Choice

The diagram shows how a change in temperature affects the physical state of a substance. Each of the labeled points represents the same substance at a different temperature.

Which point represents the substance in the physical state with the particles moving the LEAST?

• Point W

• Point X

• Point Y

• Point Z

Multiple Choice

A student slowly heats a beaker of liquid on a hot plate. The liquid has a boiling point of 78 degrees Celsius. The student makes the graph shown in the picture based on their data while the liquid is heating.

Which of the following statements BEST describes what happens to the molecules of the liquid between 5 and 10 minutes of heating?

• The mass of the molecules increases

• The molecules undergo a chemical change

• The molecules absorb energy to change phase

• The average kinetic energy of the molecules decreases

Multiple Choice

Two boxes (A and B) both contain the same number of Nitrogen gas molecules. The gas molecules in box A have twice the average speed of the molecules in box B. Which of the following best describes the Nitrogen gas in box A?

• The Nitrogen gas in box A has a greater mass than box B

• The Nitrogen gas in box A has a greater density than box B

• The Nitrogen gas in box A has a greater temperature than box B

• The Nitrogen gas in box A has a greater specific gravity than box B

Multiple Choice

What happens when water changes from a solid to a liquid to a vapor?

• The size of the water molecules increases

• The size of the water molecules decreases

• The motion of the water molecules increases

• The motion of the water molecules decreases

Multiple Choice

Which sequence represents matter that is LOSING energy?

• Solid --> Gas --> Liquid

• Solid --> Liquid --> Gas

• Gas --> Solid --> Liquid

• Gas --> Liquid --> Solid

Multiple Choice

When a sample of gas is cooled, it condenses into a liquid. In which of the following ways do the molecules of the original gas compare with the molecules of the liquid?

• The molecules are larger as a gas than they are as a liquid

• The molecules weigh less as a gas than they do as a liquid

• The molecules move faster as a gas than they do as a liquid

• The molecules are closer together as a gas than they are as a liquid

Fill in the Blanks

Both elements and

are pure substances

Fill in the Blanks

Both compounds and elements are pure substances that are

combined

Multiple Choice

Pure substances include only elements, not compounds

• True - Pure substances do NOT include compounds
• False - Pure substances include both elements and compounds
• True - Compounds are considered mixtures
• False - Mixtures are also identified as pure substances

Multiple Choice

Sulfur (S), Oxygen (O), water (H2O) and Sodium Chloride (NaCl) are all examples of pure substances. Which of the following describes ALL pure substances?

• Pure substances consist of only ONE type of element

• Pure substances have a definite chemical composition

• Pure substances cannot be broken down into simpler substances

• Pure substances are normally found as a solid at room temperature

Multiple Choice

Identify the following image as a pure substance or mixture

• Mixture because it contains more than 1 type of atom that is not chemically combined
• Pure substance because it contains only 1 type of atom
• Mixture because the atoms are chemically bonded together
• Pure substance because each atom is chemically combined

Multiple Choice

In the diagram below you can observe substance A and substance B reacting to form substance C. Based on your knowledge of matter, what type of substance is C?

• Compound because A and B chemically bonded together
• Mixture because substance C show various elements physically combined
• Element because substance C is made up of only 1 type of atom
• A colloid because substance B did not chemically combine with substance A

Multiple Choice

Two pure substances combine to make a new substance. The new substance CANNOT be PHYSICALLY SEPARATED and has a different boiling point than each of the original substances. The new substance can be best classified as as

• An atom

• A compound

• A mixture

• An element

Multiple Choice

Identify the following image as a pure substance or mixture

• Mixture because it contains more than 1 type of atom that is not chemically combined
• Pure substance because it contains only 1 type of atom
• Mixture because the atoms are chemically bonded together
• Pure substance because each atom is chemically combined

Multiple Choice

An unknown substance is in a beaker. A student makes several observations. One of their observations is listed below. Based on their observation what you can identify the unknown substance as?

• Mixture because it can be separated by a physical process
• Pure substance because it can be separated by a physical process

Multiple Choice

The 2 beakers below contain pure water. Which of the following properties is the same for BOTH of these samples?

• Mass
• Volume
• Weight
• Boiling point

Multiple Choice

A student is given a sample of an unknown liquid to test in the laboratory. The student thinks that the liquid is water. Which of the following physical properties of the sample is most helpful to determine if the liquid is water?

• Color of the liquid
• Mass of the liquid
• Volume of the liquid
• Boiling point of the liquid

Multiple Choice

During a lab investigation a scientist heats a solid substance. The scientist observes that the solid has two different melting points. The scientist is able to separate the resulting liquids. Which statement best classifies the original solid substance?

• It was an atom

• It was an element

• It was a compound

• It was a mixture

Multiple Choice

Which of the following statements describes the difference between a mixture and a pure substance?

• A mixture tends to be homogenous, while a pure substance tends to be heterogenous

• A mixture has a specific melting point, while the melting point of a pure substance can vary

• The density of a mixture can change with temperature, but the density of a pure substance cannot change

• The composition of a mixture can vary from sample to sample, but the composition of a pure substance is always the same

Fill in the Blanks

Homogenous mixtures are often used in chemistry because their uniform properties make it easy to test out various processes and reactions. What is another word for a homogenous mixture?

Multiple Choice

Which molecule represents an element?

• Bromine gas (Br₂)

• Carbon Dioxide (CO₂)

• Water (H₂O)

• Salt (NaCl)

Multiple Choice

Your teacher gives you a list of compounds to classify based on their type of chemical bonding. Which substance would you classify as ionic?

• H₂O

• CO₂

• HCl

• NaCl

Multiple Choice

Which combination of elements would most likely form an ionic compound?

• Hydrogen and Oxygen

• Carbon and Chlorine

• Sodium and Fluorine

• Silicon and Sulfur

Multiple Choice

The diagram in the picture shows a model of a methane molecule, which has the formula CH₄

Which of the following phrases correctly describes the relationship of the Carbon and Hydrogen atoms in a methane molecule?

• They are held together by ionic bonds

• They share electrons to form covalent bonds

• They bond to each other since each nucleus is positively charged

• They are attracted to each other since the nucleus of each atom contains neutrons