unit 1 Flashcards
What does whmis stand for
workplace, hazardous, material, information, system
What is supersaturated
It is when there is more solute in a solvent than normal
What do they Mena when something is saturated
It means that the solvent cannot take anymore solute at that temperature
Define matter
A physical substance that has mass and occupies space
What is the shape and volume of a solid
Shape is definite and volume is definite
What is the particle arrangement of a solid and the particle movement
Arrangement is closely packed in a pattern movement is vibrate in definite positions
What is the shape and volume of a liquid
Shape is the shape of its container and volume is definite
What Is the particle arrangement and movement of a liquid
Close together with random arrangements. Move independently and slide past each other
What is the shape and volume of a gas
Shape of container and indefinite
What is the particle arrangement and movement of a gas
Arrangement is huge spaces random arrangement. Fast and lots of collisions
What are the 5 key principles of the particle model of matter
- All substances are made up of tiny particles. 2. All particles of a pure substance are the same. 3. Particles have space between them. 4. All particles are moving. 5. Particles are attracted to each other.
What is solid to gas
Sublimation
Gas to solid
Deposition
Gas to liquid
Condensation
Liquid to gas
Evaporation
Solid to liquid
Melting
Liquid to solid
Freezing
Define pure substance
Contains only one type of particle all 3 states of matter
Define mixtures
Contains 2 or more pure substances not an element
2 types of mixtures
Heterogeneous and homogeneous
3 types of heterogeneous
Colloid, suspension, mechanical mixtures
What I’d homogenous
It is when the solute is completely dissolved in the solvent or a solution
What is heterogeneous
Where the solute cant dissolved in the solvent
Define colloid
A heterogeneous mixture is where the solute hasn’t fully settled in a solvent eg fog and they can’t be separated
