Answer Happy

4. (2 pts) Reactive organics (ROGS) are of regulatory concern because: a. ROGS photochemically react to increase formation of "bad" ozone b. ROGS combine with NO, to deplete ozone in the stratosphere c. ROGS and SO₂ can combine to form acid rain d. None of the above 5. (2 pts) What are the units for the reaction rate constant k for the reaction: A+B C+D+E? a. L/mol b. L²/mol²-s c. L/mol-s d. s¹ 6. (2 pts) Which of the following reactions occurs the fastest? a. b. C. d. Reaction CO+ OH-CO₂ +H. CH₂+ OH-CH₂ + H₂O . C₂H6+ OHC₂H₂ + H₂O C₂H₂ + OHC₂H₂ + H₂O Rate constant k (m³/molecules s 150 x 10-¹5 6.3 x 10-15 230 x 10-15 1200 x 10-¹5 7. (2 pts) How many bonds does the C atom of a methane molecule have and why? a. 4, because C has 4 valence electrons that tend to form 4 bonds b. 5, because C has 5 valence electrons that tend to form 3 bonds and a lone pair c. 6, because C has 6 valence electrons that tend to form 2 bonds & two lone pairs d. 8, because C wants to have a full 2nd shell 8. (2 pts) Which of the following is true for alkalinity (Alk)? a. Alk is also known as water's acid neutralizing capacity (ANC) b. Alk is water's ability to resist change in pH when a strong base dissociates c. Alk is expressed with units of eq/L d. Alk can be approximated as [HCO₂ ] for neutral waters e. All of the above except b f. All of the above except d 1