A. The reaction A B is described in the following graph. (7 points)
i. What does it mean for a reaction to be at dynamic equilibrium? (2 points)
ii. Which line on the graph (1, 2, or 3) represents the system at dynamic equilibrium? Explain your answer. (1 point)
iii. Describe the rate of the reaction at equilibrium. (1 point)
iv. If Keq << 1 for the reaction A B, would the reaction favor products or reactants? Explain your answer. (1 point)
b. Use the reaction 2H2(g) + S2(g) 2H2S(g) for the following questions. (3 points)
i. Write the equilibrium constant for this reaction. (1 point)
ii. If a sample at equilibrium contained 0.051 M H2, 0.087 M S2, and 0.97 MH2S, what would Keq be for this reaction? (1 point)
iii. According to Le Châtelier's principle, what would happen to the equilibrium conditions if more S2 were added to the system? (1 point)
c. For the reaction SO2(g) + NO2(g) NO(g) + SO3(g), Keq = 10.8.
A sample of this gas mixture was analyzed and found to contain 0.9 M NO, 1.7 MSO3, 0.07 M SO2, and 1.3 M NO2. Is the system at equilibrium? If so, explain why. If not, which way will it shift to reach equilibrium? (2 points)

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds

estuaries are the partially enclosed coastal bodies of brackish water formed at the mouth of sea where river meets an ocean. it is a transition zone between river and sea water so estuaries are influenced to both marine environment such as tides, waves and to riverine such as flow of fresh water and sediments. the mixing of sea and fresh water provide high level of nutrients, making estuaries a high product habitats.

many estuaries suffers degradation from a variety of human activities like erosion from deforestation, overgrazing, overfishing, drainage and eutrophication.

so from the above statement answers will be

1. false as estuaries are formed due to both brackish and freshwater.

2.true, due to high productivity estuaries are breeding ground for many marine species.

3. direct and indirect activities of man that contribute to pollution and deposition of sediments.

fumikage isn't really a bird, and tsuyu does have teeth. tsuyu has a transformation quirk which still allows her to be partially human. otherwise we'd have a large frog running around. fumikage has teeth because again, he isn't a bird. his head was a quirk mixture if i'm correct.