Unit 2 Exam Flashcards
Pure substance
A material that is composed of only one type of particle
Homologous mixture
Mixture is in one which the composition of its constituents are unformally mixed throughout
Example: filtered sea water
Heterogeneous mixture
A nonuniform mixture in which the components separate and the composition varies.
Example: separation of sand and water
Element
The most basic unit of matter ( anything on the puriodic table)
Compound
An atom or element that has been bonded together
H2O) (rust
Solution
A homogeneous mixture in which on substance, The solute, dissolves completely in another substance, the solvent ( salt dissolved in water)
Suspension
Particles that are easily filtered but not easily settled
Example : pepper in water
Colloid
A solution with larger particles
Example: Milk, Fog
Viscosity
The state of being thick, sticky, and semi fluid in consistency due to the internal friction
Example: Honey
Malleability
The ability of metal to be hammered into thin sheets
Example: gold and silver
Boiling point
The temperature at which a liquid turns into a vapor
Melting point
The temperature at which in change of state from a solid to a liquid
Density
The state or quality of being dense; compactness
Conductivity
The degree in which a specific material conducts electricity
Flammability
The ability of a substance to burn
Example: marshmallow
