Student Exploration: Chemical Equations
Prior Knowledge Questions
(Do these BEFORE using the Gizmo
A candle is placed on one pan of a balance, and an equal weight is placed on the other pan.
Suppose the candle was placed in a large, sealed jar that allowed it to burn for several
minutes before running out of oxygen. The candle and jar are balanced by an equal weight.
Burning is an example of a
. The law of
conservation of matter
no atoms are created or destroyed in a chemical reaction. Therefore, a balanced
will show the same number of each type of atom on each side of the equation.