LAREDO COMMUNITY COLLEGE
Science Department
CHEM 1411 Balancing Equations Worksheet # 2 Combustion Reactions
Name: Score / 15
Date Section
Part I. Balance the following chemical equations using the smallest set of whole-
number coefficients. A coefficient must be placed in each blank.
(1) ____ H2 (g) + ____ O2 (g) ____ H2O (g)
(2) ____ C (s) + ____ O2 (g) ____ CO2 (g)
(3) ____ CO (g) + ____ O2 (g) ____ CO2 (g)
(4) ____ N2 (g) + ____ O2 (g) ____ NO2 (g)
(5) ____ N2H4 (g) + ____ O2 (g) ____ NO2 (g) + H2O (g)
(6) ____ C6H12O6 (s) + ____ O2 (g) ____ CO2 (g) + ____ H2O (g)
(7) ____ Mg (s) + ____ O2 (g) ____ MgO (s )
(8) ____ CH4 (g) + ____ O2 (g) ____ CO2 (g) + ____ H2O (g)
(9) ____ CH3OH (l) + ____ O2 (g) ____ CO2 (g) + ____ H2O (g)
