Download Equation Balancing Classwork

Name _____________________________
Date _____________
Equation Balancing Classwork
Directions: Use coefficients (small whole numbers) on each line to balance the chemical equations
so that the total number of each type of atom is the same on left and right of arrow. Remember that
the coefficients are multiplied by each atom and subscript in the formula which the coefficient
precedes. For example, 5H2O indicates 10 hydrogens and 5 oxygens. A subscript, like the 2 in H2O,
applies only to the atom or parenthetical group of atoms directly before it.
Beside each equation, identify reaction type: SR, DR, S, D, C (see reference for descriptions)
RxnType
1.
2.
3.
____ Cl2
____ N2
+
+
____ KI
____ O2
5. ____ Zn
____ H2O
______ Ba(NO3)2
+ ____HBr
6. ____ MgO
8. ____ Fe2O3
+
____ O2
____ CO
____ I2
+
____ Na2SO4
____ NaNO3 +
____ ZnBr2
____ Mg
7. ____ C5H12 +
+
____ N2O
____ NaOH + _____ H2SO4
4. ____ Na2CO3 +
____ KCl
+
+
____ BaCO3
____ H2
____ O2
____ CO2
____ Fe
+
____ H2O
+
____ CO2