Elements, Compounds, and Mixtures Flashcards
fundamental substances that
cannot be broken down into other substances
through chemical methods.
Elements
Elements contain only one kind of
Atom
group of two or more atoms
bonded to each other.
Element
a pure substance that is formed
when atoms of two or more elements are
bonded chemically.
Compound
elements combine to form a
compound that always
contains exactly the same
proportion of elements by
mass
Law of Definite Composition/Proust’s Law
*Compounds can be
Acids, Bases, Salts
which is a substance whose color
is affected by acids and bases, is used to
differentiate one from the other.
Indicator
If its Acid, a
Blue litmus turns red
If its a base, a
Red Litmus turns blue
physical combinations of two or
more pure substances in which the individual
identities of the substances are not altered.
Mixtures
*Mixtures can be separated through different
separating methods: (FEMDC)
Filtration, Evaporation, Magnetic Separation, Distillation, Centrifugation
*for separating insoluble
solid (residue) from a
liquid (filtrate)
Filtrating
*good for separating a soluble solid from a liquid
Evaporation
good for separating a
magnetic solid from a
nonmagnetic solid or
liquid
Magnetic Separation
good for separating
volatile liquid from
non-volatile
substances in a
solution
Simple distillation
cannot be separated by filtration
Solutions and Colloids
can be separated by fitlration
Suspensions
heterogenous
Colloids and Suspensions
homogenous
Solution
