CLOZE - Reactions and the Law of Conservation of Matter Name: salome
All the time, chemical reactions are taking place. With or without our notice,
substances are being broken apart and new substances are being
In order to understand or describe these reactions, scientists use chemical
A chemical equation is exactly what it sounds like, an equation about
(or chemical
). Chemical equations contain symbols for the
elements, compounds, or
involved. Chemical equations also
contain the number or amount of each substance involved.
An arrow shows the difference between the reactants (the items
together) and the products (the items that are
.). Reactants are
the substances that are
apart or combined in a reaction. They
are on the
side of the arrow,
Products are located on the right side of the arrow and they are the
substances that are formed in a chemical reaction.
Let's look at an example: