elements, compounds, and mixtures Flashcards
:is a substance made up of only one kind of atom.
ELEMENT
:is a substance made up of two or more elements chemically combined together.
COMPOUND
Compounds can be classified as
ionic or covalent.
do not exist in independent molecular form.
lonic compounds
A _____ is a true representative of the covalent compound and its formula is called _________
molecule
molecular formula.
is a chemical formula that shows the number and kinds of atom in a molecule.
A molecular formula
TYPES OF MIXTURES
HETEROGENEOUS
HOMOGENEOUS
has differences throughout a sample.
A Heterogeneous Mixture
is the same throughout a sample.
A Homogeneous Mixture
It is formed by the chemical combination of atoms of the elements.
COMPOUNDS