Understandings● Rain is naturally acidic because of dissolved CO2 and has a pH of 5.6. Acid deposition has a pH
below 5.6. ● Acid deposition is formed when nitrogen or sulfur oxides dissolve in water to form HNO3, HNO2, H2SO4, and H2SO3. ● Sources of the oxides of sulfur and nitrogen and the effects of acid deposition should be covered. |
Applications and skills● Balancing the equations that describe the combustion of sulfur and nitrogen to their oxides and the subsequent formation of H2SO3, H2SO4, HNO2, and HNO3.
● Distinction between the pre-combustion and post-combustion methods of reducing sulfur oxide emissions. ● Deduction of acid deposition equations for acid deposition with reactive metals and carbonates. |
Student presentations |