Quiz 2A Flashcards
Anything that takes up space and has mass
Matter
from nothing
ex nihilio
Organization of matter
Pure substances–
Mixtures–
Can be measured without changing the material into another substance
Physical property
Describes how the particles are packed into a material
Density
Describes how easily a material can be hammered into shapes
Malleability
describes how easily materials can be drawn into thin wires
Ductility
Describes the ability of a material to transfer heat or electricity between its particles
Conductivity
Physical properties
color, odor, taste, shape, size, solubility, hardness, state, melting point, boiling point
Evident only when the material changes to another substance
Chemical properties
Chemical properties
Flammable- burns
Reactive- acts upon another
Oxidizes- combines with oxygen (or other nonmetals)
Two or more substances physically placed together, not chemically joined
Mixture
Only one kind of particle
Pure Substances
Different kinds of particles are visible; Example: sand and rocks
Heterogeneous
Different kinds of particles are NOT visible; Example: salt, water
Homogeneous