Chemistry level 5&6 Quiz

What is the main difference between solids, liquids, and gases in terms of particle arrangement?

• Solids have particles that are far apart, liquids have particles that are close together, and gases have particles that are tightly packed.

• Solids have particles that are tightly packed, liquids have particles that are close together, and gases have particles that are far apart.

• Solids have particles that are close together, liquids have particles that are far apart, and gases have particles that are tightly packed.

• Solids, liquids, and gases all have particles that are tightly packed.

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

• Cooking an egg

• Rusting of iron

• Dissolving sugar in water

• Burning wood

What happens to the particles of a substance when it changes from a solid to a liquid?

• The particles move closer together.

• The particles move further apart and start to move around each other.

• The particles stop moving.

• The particles become tightly packed.

Which of the following is an example of an irreversible change?

• Melting ice

• Freezing water

• Boiling water

• Baking a cake

What is a mixture?

• A single substance with a fixed composition

• A combination of two or more substances that are chemically bonded

• A combination of two or more substances that are not chemically bonded

• A substance that cannot be separated into other substances

Which of the following processes is used to separate a mixture of sand and water?

• Filtration

• Evaporation

• Distillation

• Condensation

What is the term used to describe the change of state from gas to liquid?

• Evaporation

• Condensation

• Sublimation

• Freezing

Which of the following is true about the particles in a gas?

• They are tightly packed and vibrate in place.

• They are close together and slide past each other.

• They are far apart and move freely.

• They are arranged in a fixed pattern.

What happens to the temperature of a substance during a change of state?

• It always increases.

• It always decreases.

• It remains constant.

• It fluctuates randomly.

Which of the following is an example of a solution?

• Sand in water

• Oil in water

• Salt dissolved in water

• Iron filings in sand