Videos: When viewing, please take notes just like you are in the class. Write down everything. Replay is necessary!!!

Notes:

States of Matter:

Solid: definite shape, definite volume, very high intermolecular forces
Liquid: definite volume, but no definite shape (takes the shape of the container) weak intermolecular forces
Gas: no definite volume, no definite shape, no intermolecular forces

physical changes of matter.jpeg

Plasma: is a gaseous state of matter that contains appreciable numbers of electrically charged particles.

Physical Change: the physical state of matter or the phase changes of matter. (solid, liquid, gas)

Terms:

Boiling / evaporation: Energy is added to a liquid and the liquid becomes a vapor (gas)
Condensation: Energy is removed from a gas and it becomes a liquid

Sublimation: Energy is added to a solid and it changes to a gas without become a liquid
Deposition: Energy is removed from a gas and it changes to a solid without become a liquid.

Classification of Matter:

Element: Simplest substance that cannot be chemical broken down into a simpler substance

Compound: A substance that can be broken down into 2 or more simpler substances.

2 H₂O --> 2 H₂ + O₂

CaCO₃ --> CaO + CO₂

Heterogeneous mixture: A mixture that does not mix evenly.

example(s) sand with water

oil and water

Homogeneous mixture: A mixture that is evenly distributed throughout

Example(s) salt and water

air