2. a. b. Hydrazine (N₂H₂) is a common chemical used in rocket fuels. It can be produced by the following unbalanced equation: Balance the equation above. N₂(g) + Suppose you perform this reaction with: 10.0 liters of N, measured at 720 mm Hg and 50°C 18.0 liters of H₂ measured at 800 mm Hg and 10°C. Which is the limiting reagent? H₂(g) → and N₂H₂(g)

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7. Which of the following would behave as a hydrogen bond acceptor, but not a hydrogen bond donor? H H:0: H I || | Н-с-с-с-н H :0: H ннн ннн Н-с-с-с—Н Н-с-с-с-о- Н-с-с-с-N-H ннн H ннн нннн

Question 10 Based on your answers to Questions 7, 8, and 9, which ranks these three compounds in order of increasing water solubility? "NH₂ NH₂ NH₂ "NH₂

Aldehydes and ketones are A. polar molecules capable of forming hydrogen bond among themselves. B. polar molecules incapable of forming any hydrogen bond. O C. polar molecules with large dipole moment. O D. polar molecules that provide hydrogen bond donors.