The document provides instructions for a lab activity to balance chemical equations. Students are asked to create a table with their names to record 10 chemical equations. They must balance each equation and identify the type of chemical reaction. The document also includes pre-lab questions about coefficients, subscripts, and elements represented by "H" and "S" to ensure students understand the concepts before conducting the activity.

1. Balancing Chemical Reactions Activity
A. Create the following table on one sheet of paper and place 2-3 of your names on it.
B. Answer the following pre-lab questions before beginning activity:
a. What number represents the Coefficient? ______________
b. What number represents the Subscript? _______________
5H2S
c. What element is represented by the letter "H"? ________ by “S”?__________
d. How many "H's" do you have? ________________How many “S”s?_________
Table 1: Chemical Equations
Make the following Chemical Equation
Reactants Products Type of reaction
Equations on your desk (balanced!)
1. H2 + O2 --> H2O
2. H2O2 --> H20 + O2
3. Na + O2 --> Na2O
4. N2 + H2 --> NH3
5. P4 + O2 --> P4O10
6. Fe + H2O --> Fe3O4
+ H2
7. C + H2 --> CH4
8. Na2SO4 + CaCl2 -->
CaSO4 + NaCl
9. C2H6 + O2 --> CO2 +
H2O
10. Al2O3 --> Al + O2