Solid to Gas = Sublimination
Gas to Solid = Deposition
The primary difference between states of matter is the molecular structure.
A phase diagram shows how if pressure and temperature is varied, matter will be solid, liquid or gas.
Element + Element = mixture
If a chemical reaction takes place in the mixture it becomes a compound.
Physical properties can be observed without changing. For example: Density, luster, hardness, color, state
Chemial properties can only be observed when the matter is reacting with another substance.
Intensive property: scale invariant (color)
Extensive property: varies w/ amount (mass)
The ratio of 2 extensive quantities that scale in the same manner is an intensive property. ie density = mass/volume.
Measurement and Units:
Accuracy: How close to the true value
Precision: How well can be repeated