What is the primary characteristic of the motion of molecules within a gas?

They vibrate in fixed, tightly packed positions.

They move at high speeds in random directions.

They slide past one another while remaining in contact.

They are arranged in a fixed, crystalline lattice structure.

A gas will expand to fill the entire volume of any container it is placed in. What property of gas molecules best explains this phenomenon?

The molecules are strongly attracted to the walls of the container.

The molecules are very large in size compared to the container.

The molecules are in constant, random motion until they collide with a boundary.

The molecules lose energy with every collision, causing them to slow down and spread out.

organized in a specific pattern.

are heavier than air and sink to the floor before rising.

react chemically with the air to create a new scented substance.

are stationary until they are pushed around by air currents.

move randomly and spread out to fill the available space.

Because the molecules themselves can be squeezed into a smaller size.

Because there are large amounts of empty space between the molecules.

Because the chemical bonds within the molecules are very weak.

Because applying pressure to a gas causes its molecules to turn into a liquid.