A symbol equation uses chemical formulas to represent reactants and products in a chemical reaction. It must be balanced to show the correct ratio between reactants and products undergoing the reaction. For example, the symbol equation given shows that one atom of sulfur reacting with one molecule of oxygen produces one molecule of sulfur dioxide.

1. What is a symbol equation?

2. What is a symbol equation?
A symbol equation uses the formulae of the reactants and
products to show what happens in a chemical reaction.

3. What is a symbol equation?
A symbol equation uses the formulae of the reactants and
products to show what happens in a chemical reaction.
A symbol equation must be balanced to give the correct
ratio of reactants and products.
S + O2  SO2

4. What is a symbol equation?
A symbol equation uses the formulae of the reactants and
products to show what happens in a chemical reaction.
A symbol equation must be balanced to give the correct
ratio of reactants and products.
S + O2  SO2
This equation shows that one atom of sulfur (S) reacts
with one molecule of oxygen (O2) to make one molecule
of sulfur dioxide (SO2).

5. What is a symbol equation?
A symbol equation uses the formulae of the reactants and
products to show what happens in a chemical reaction.
A symbol equation must be balanced to give the correct
ratio of reactants and products.
S + O2  SO2
This equation shows that one atom of sulfur (S) reacts
with one molecule of oxygen (O2) to make one molecule
of sulfur dioxide (SO2).
+ 