Midterm study guide

definition of sublimation

The is: A substance in a solid state changes into the gaseous state without going through the liquid state.

Safety protection

should be worn: At all times when performing any work that requires PPE.

Molecules

are made up of atoms.

Atmospheric pressure

A barometer is used to read: .

nucleus of an atom

The : Is composed of protons and neutrons.

law of conservation of matter

The states that: Matter can not be created or destroyed.

total pressure

The in a mixture of gases is equal to: The sum of all the individual gas partial pressures.

Atmospheric pressure

is affected by: Altitude, temperature, and humidity.

atmospheric pressure

A vacuum is any pressure less than .