Chemistry vocab quizz 14.04.2023

One of the very small parts of matter.

The theory that all matter consists of tiny particles (atoms, ions, molecules) that are moving constantly- they never stop.

An instant of one moving object striking violently against another.

When objects collide to each other and they are able to resume their normal shapes spontaneously, after contraction.

The force exerted by a gas on a surface.

An empty space with no atoms or molecules in it, so it has no pressure.

All the air that surrounds the Earth to a height about 12km.

The (movement) energy an object has due to its motion.

____ is also called as phases, which includes: solid, liquid, gas and plasma (rare).

A device that measures air pressure and shows when the weather is likely to change

A gas that forms above a liquid surface due to the evaporation of liquid particles.

A form of vaporization occurs at lower temperature, where only a small proportion of particles near the surface have enough energy to enter the gas phase.

The conversion of a liquid into a gas.

A form of vaporization occurs when the temperature is high enough that particles throughout the liquid have enough kinetic energy to enter the gas phase.

The conversion of a gas into a liquid.

The force exerted by a gas (vapor) above a liquid surface due to particle collision.

A situation in which two opposite chemical reactions happen at the same speed (rate of evaporation = rate of condensation).