Properties of Matter

Which of the following best shows the spread of particle movement from fastest to slowest?

• gas, liquid, solid

• solid, gas liquid

• gas, solid, liquid

• solid, liquid, gas

Which statement best describes the particles in a sample of H2O in the solid phase?

• They vibrate in place and have very weak bonds.

• They vibrate in place and have very strong bonds.

• They move very quickly and rarely interact.

• They move very quickly and frequently collide.

A student pours water in a graduated cylinder and finds the mass of the water to be 3.2 g and the volume to be 3.2 cm^3. What is the density of the water?

• 10.24 g/cm^3

• 1 g/cm^3

• 12 g

• 10.24 g

What are the characteristics of a substance that can be observed WITHOUT changing the identity of the substance?

• Flammability

• Reactivity

• Physical properties

• Chemical properties.

To calculate the density of an object,

• Divide its volume by its mass.

• Divide its mass by its area.

• Multiply its mass by its volume

• divide its mass by its volume.

A brick is cut into small pieces. Which physical property do the small pieces have in common with the brick from which they came?

• Shape

• Mass

• Density.

• Length

Vito threw a rock into the lake and observed it sink. His friend, Romeo, threw his apple in the lake and observed it float. What is the most likely explanation for why the rock sank and the apple floated?

• The mass of the apple was greater than the rock.

• The mass of the apple was less than the rock.

• The density of the apple was less than the water in the lake.

• The density of the rock was less than the water in the lake.

Hector is standing in a closed room with a balloon filled with helium gas. If Hector pops this balloon, what will happen to the molecules in the helium gas?

• They will expand and flow through the room.

• They will flow to the floor and form a puddle.

• They will condense into a cloud around Hector.

• They will fall to the floor as a structured solid.

Which of the following describes the difference between the motion of liquid water and water vapor?

• The particles in a gas can slide past each other, while the particles in a liquid are locked in place.

• The particles in a liquid can slide past each other, while the particles in a gas are free to move in all directions.

• The particles in the liquid do not move, bu the particles in a gas can move back and forth.

• The motion of the particles in the same in both states, but they move slower in the gas state.

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

• The density of neon gas.

• The melting point of gold.

• The boiling point of ethanol.

• The flammability of hydrogen.