Lecture 1 & 2 Matter Flashcards
Define Matter
Anything that occupies space and has mass.
List the 3 states of Matter
Solid, liquid and gas.
Explain a Solid
- Rigid (not flexible)
- fixed vol & shape
Explain a Liquid
- Definite vol (fixed)
- Assumes shape of container
Explain a Gas
- No fixed vol or shape
- takes the shape & vol of its container
Define Physical Properties
Observable characteristics
Define Chemical Properties
Characteristics that describe the behavior of matter (Chemical reactions).
What two categories can matter be divided into?
Pure substances and mixtures.
Define Pure Substances
Fixed composition (same throughout); can’t be further purified.
Define Mixtures
A combo of two or more pure substances.
What are the two categories of pure substances?
Elements and compounds.
Define Elements
Can’t be subdivided by chemical or physical means.
Define Compounds
Elements united in fixed ratios.
What can elements combine chemically to form?
Compounds
What can mixtures be physically separated into?
Pure substances
What are the two categories of mixtures?
Homogeneous and Heterogeneous.
Define Homogeneous
Uniform composition throughout (mixed evenly throughout)
Define Heterogeneous
Non uniform composition (not evenly mixed throughout)
List the 4 separation of mixtures techniques
Distillation, filtration, chromatography and evaporation
What is the physical property for distillation?
Boiling point
What is the physical property for filtration?
State of matter (s, l, g)
What is the physical property for chromatography?
Adherence to a surface
Define Chromatography
A technique of separation of a mixture into its components.
What is the physical property for evaporation?
Volatility (how easy it vaporizes)
