Matters and properties
what is an element
only one type of atom (nitrogren, oxygen, carbon)
a mixture is
the physical combination of two or more substances
a suspension is
a heterogeneous mixture which consists of a liquid with visible particles that settle out
evidence of chemical change can be
changes form
creates gas
changes color rapidly
releases or absorbs energy
or produces odor
what is a compound
a molecule made of a fixed ratio of elements (H20)
a mixture can be
seperated physically
a solution is
(kool-aid, iced tea, brewed coffee)
a mixture that contains only one type of matter, element, or compound is
a pure substance
a mixture has
no fixed ratio
a mixture that is like a heterogeneous mixture because it contained different things in varying proportions but is like a homogeneous mixture because the components wont settle out if left standing is
a colloid
compounds can be broken down chemically by
breaking the bonds of a molecule
heterogeneous mixture
matter is
anything that has mass and takes up space
a mixture where the substances are well mixed and appear the same are
homogeneous mixtures (also called solutions)