Chemistry Final Exam

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Solvent

What is doing the dissolving

Solute

What is being dissolved

Saturated

Contains the maximum amount of solute that is capable of dissolving.

Unsaturated

Contains less than the maximum amount of solute that is capable of being dissolved.

Supersaturated

Contains more than the maximum amount of solute that can be dissolved.

Heat

The amount of thermal enegy possessd by a substance.

Can be transferred and has the ability to do work.

Temperature

How fast the atoms are moving

Specific Heat

The amount of energy required to increase the temperature of one gram of a substance by one celcius or one kelvin.

Examples of phase change

Melting - Ice melting into water

Sublimation - Carbon dioxide (solid to gas)

Deposition - Dry ice (gas to solid)

Half life

The time required for ½ of the atoms in a radioactive isotope to decay

Isotope

Atoms with the same number of protons but a different number of neutrons

Why isotopes decay

Because of the imbalance in the number of protons and neutrons