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Adjust coefficients so that carbon is balanced on both sides (there are no metals to balance):
reactant: C – 2 ; H – 6 ; O – 2
product: C – 2 ; H – 2 ; O – 5
Next, adjust coefficients so that hydrogen is balanced on both sides:
reactant: C – 2 ; H – 6 ; O – 3
product: C – 2 ; H – 6 ; O – 7
Then adjust coefficients so that oxygen is balanced on both sides:
reactant: C – 2 ; H – 6 ; O – 7
product: C – 2 ; H – 6 ; O – 7
And finally, make all coefficients whole numbers:
Types of Chemical Reactions
There are millions of different chemical reactions that occur everyday all around us. Chemists organize
information about reactions by classifying them by patterns of chemical change. This classification helps
predict the products and conditions of a chemical change. Most chemical reactions fall into four
categories:
Synthesis Reaction is a reaction in which two or more reactants combine to form a single product (also
called a composition reaction):
A + B C
An example of a synthesis reaction is:
Decomposition Reaction is a reaction in which a single compound breaks down into two or more
elements or compounds:
AB A + B
