8 Properties of and Changes in Matter Flashcards
used to describe; one type of matter may be described, identified, or distinguished from another by its properties
properties of matter
classified into physical and chemical
properties of matter
describe sub’s appearance
physical properties of matter
perceived by senses: intensive and extensive
physical properties of matter
measured w/out changing identity/chemical composition
physical properties of matter
does NOT depend on mass/amount of substance
intensive
depends on mass/amount of substance
extensive
odor, color, luster, ductility, density, porosity, viscosity, solubility, elasticity, hardness, plasticity, brittleness, malleability, boiling pt, melting pt, compressibility
intensive
mass, shape, length, volume
extensive
phys changes in states of matter due to temp change
phase changes
amt of temp needed before sub turns from one state of matter to another
melting/boiling pt
amt of space occupied by matter w/ common unit of liter (L)
volume
amt of matter in an obj with base unit of kg
mass
compactness of matter, which is the ratio of subjs mass to volume
density
brittleness, ductility, electric/thermal conductivity, elasticity, flexibility, hardness, luster, malleability, porosity, solubility
properties of solid
miscibility, viscosity
properties of liquid
compressibility
properties of gases
observable after subs react w/ other chemicals to change in its chemical composition
chemical properties
easily broken down into pieces
brittleness
drawn into wires
ductility
allow electricity/heat to flow
electric/thermal conductivity
return to og size + shape when force applied is released
elasticity
bent w/out breaking
flexibility
resistance of mat to oppose charge in shape/be deformed
hardness
sub shine/reflect light
luster
hammered into thin sheets
malleability
max amt of deformation to which matter may be subjected w/out breaking
plasticity
capability to absorb liquid
porosity
capability to be dissolved in liquid subs
solubility
mixed w/ another liquid
miscibility
resistance to flow
viscosity
ability of gases to be squeezed + compacted into a smaller space
compressibility
acidity/basicity, combustibility, corrosiveness, radioactivity, toxicity
chemical properties
react w/ acids/bases
acidity/basicity
material that can ignite, with lower degree of being flammable
combustibility
sub to cause damage/destroy other mats they come into contact w/
corrosiveness
prop exhibited by some unstable atoms emitting energy + subatomic particles
radioactivity
substances become poisonous
toxicity
physical and chemical changes
changes in matter
know if there has been chem change by looking for new sub; gathering evidence
evidence of chem change
new color (ripe fruits, leaves during fall)
color change
energy is absorbed/released from system to surroundings (burning wood)
temp change
odor produced, different than usual smell (rotting eggs, decomposing flesh)
odor production
gas made after chem reaction (effervescent tablets)
gas production
solid substance produced after mixing liquids
precipitate
precipitate production
production of precipitate
color change, temp change, odor production, gas production, precipitate production
evidence of chem change
