process to separate the components of a mixture
depending on the different abilities of the substance to form a gas
Back
Physical Change
Front
during this change , a substance changes its physical appearance but not its composition
Back
Mega
Front
10^6
M
Back
Temperature
Front
measure of the hotness or coldness of an object depending on the kinetic energy
Back
States of Matter
Front
solid
liquid
gas
Back
Gas
Front
no fixed volume or shape
compressed and expanded
Back
Filtration
Front
process to separate mixture
pour through filter paper or porous medium
Back
Giga
Front
10^9
G
Back
Explain the molecular organization of a gas.
What Happens when you compress it?
Front
molecules are far apart and are moving at high speeds, colliding repeatedly with each other and the walls of the container
Compressing a gas will decrease the amount of space between the molecules and increase the frequency of collisions ( does not alter shape or size of the molecule itself)
Back
Intensive Properties
Front
temperature ,melting point and density
do not depend on the amount being examined
Back
Property
Front
any characteristic that allows us to recognize a particular type of matter and to distinguish it from other types
Back
Heterogeneous
Front
not uniform
Back
Density
Front
mass/volume
Back
Physical Properties
Front
properties can be observed without changing the identity and composition of a substance
EX: color, density, melting point, boiling point, hardness
Back
Mass
Front
measure of the amount of material in an object
base unit for this in SI is the kilogram
Back
Atoms
Front
building blocks of matter
each element is composed of a unique type of atom
arrangement of atoms create matter
Back
Compound
Front
substances composed of two or more elements- containing two or more kind of atoms
Back
Micro
Front
10^-6
Back
Accuracy
Front
how close the individual measurements are to the true value ( true value = correct value)
Back
Precision
Front
measure of how close the individual measurements agree with one another
Back
Deci
Front
0.1
d
Back
Molecules
Front
two or more atoms are joined together in specific shapes
Back
Extensive Properties
Front
depend on the quantity of the sample
EX: mass , volume
Back
Liquid
Front
distinct volume independent to its container
no specific shape
Back
Solid
Front
both definite shape and volume
Back
Homogeneous Mixture
Front
uniform
Back
Molecular Organization in a Solid
Front
molecules are held tightly together in a definite arrangements where they can only slightly wiggle
Back
Chromatography
Front
process to separate mixture
seperates by components dissolved in an acid with paper to show the color change as they dissolve at different rates
Back
Kilo
Front
10^3
k
Back
Celsius Scale
Front
0 degrees is the freezing point
100 degrees is the boiling point
Back
Mixtures
Front
combinations of two or more substances in which each substances retains its own chemical identity
composition can vary
Back
Elements
Front
elements cannot be composed into simpler
Back
Milli
Front
0.001
m
Back
Pico
Front
10^-12
p
Back
Matter
Front
physical material of the universe - anything that has mass and occupies space
Back
Chemical Change
Front
during this chance, a substance is transformed into a chemically different substance
Back
Nano
Front
10^-9
n
Back
Centi
Front
0.01
c
Back
Molecular Organization in a Liquid
Front
molecules are packed together but still move rapidly
this rapid movement allows the molecules to slide past each other- explains why a liquid pours quickly
Back
Law of Constant Composition /Definite Proportions
Front
pure compound has the same composition and properties regardless of its source
Back
Femto
Front
10^-15
f
Back
Pure Substance
Front
Matter that has distinct properties and a composition that does not vary from sample to sample
Back
Chemical Properties
Front
properties pertaining to the chemical composition
EX: flammability