A compound is made up of 2 or
more atoms chemically
A mixture is formed when 2 or more atoms make a substance
that are not chemically combined.
A solute is what dissolves in a solvent
to make a solution.
Soluble things will dissolve.
Insoluble things do not dissolve.
Filtering is the separation of a soluble
from an insoluble.
If something reacts chemically a new substance will be
formed and/or a temperature change will occur and/or
it will change colour
The formula for sodium chloride is NaCl.
The symbol for an aqueous is (aq).
distillation is the process of heating a liquid until it turns to
gas then getting a cooler tube to make the gas condensate
around the tube and finally collecting the liquid that comes
from the condensation. Evaporation, condensation, collection.
A solution is what
happens when a solid
dissolves in a liquid.
An alloy is a mixture of 2 or
more elements with 1 or
more being a metal.
Polymers are made up of lots
of molecules attached to each
other to form long chains.
Biodegradable means that something can
fixed boiling and
Mixtures do not have fixed boiling and freezing
points because of their composition.
A mixture can be separated by physical means.
The composition of air is 21% oxygen,
78% nitrogen and 1% other.