The document provides instructions on balancing chemical equations. It defines key terms like reactants, products, and coefficients. It explains that balancing equations involves making an inventory of each element before and after the reaction, and adding coefficients to make the inventories equal on both sides. The procedure involves drawing boxes around formulas, making an element inventory table, and adding coefficients until the before and after inventories match for each element. Students are assigned homework to practice balancing equations.

3. Balancing a chemical equations is much like the work of an accountant who has to show where every penny has come from and where it has gone to. Balancing Equations

4. Inhibitors Balancing Equations Catalysts Starts and/or Speeds Up Chemical Reactions Stops and/or Slows Down Chemical Reactions Vocabulary Word Definition

5. Balancing Equations Mass can neither be created or destroyed in any chemical reaction. Word Definition Conservation of Mass Reactants Products Coefficient

6. Balancing Equations 2 NaOH + H 2 SO 4 Na 2 SO 4 + 2 H 2 O Conservation of Mass = the same number of atoms of each element on each side of the equation.

7. Balancing Equations Mass can neither be created or destroyed in any chemical reaction. Substances going into the reaction. Word Definition Conservation of Mass Reactants Products Coefficient

8. Balancing Equations Reactants = the substances going into a reaction 2 NaOH + H 2 SO 4 Na 2 SO 4 + 2 H 2 O

9. Balancing Equations Mass can neither be created or destroyed in any chemical reaction. Substances going into the reaction. Substances produced by the reaction Word Definition Conservation of Mass Reactants Products Coefficient

10. Balancing Equations Products = the substances being produced by the reaction 2 NaOH + H 2 SO 4 Na 2 SO 4 + 2 H 2 O

11. Balancing Equations Mass can neither be created or destroyed in any chemical reaction. Substances going into the reaction. Substances produced by the reaction The number in front of the formula indicating how many molecules Word Definition Conservation of Mass Reactants Products Coefficient

12. Balancing Equations Coefficient = The number in front of each formula or element indicating how many molecules 2 NaOH + H 2 SO 4 Na 2 SO 4 + 2 H 2 O

21. Remember HOMEWORK : Complete “ Balancing Equations #1 ””- Due Tomorrow Part 1