Determine AH° for: 4 NH3(g) + 7 0₂(g) → 4NO2(g) + 6 H₂O(l)

Does NaCl(s) conduct electricity at room temperature?  Yes/No and Explain why?

Using the values of AG;º from the tables in Appendix C in the back of the textbook, calculate AGº for the following reaction. 2 C2H2 (g) + 5 O2 (g) → 4 CO2 (g) + 2 H2O (g)

The airbags that protect people in car crashes are inflated by the extremely rapid decomposition of sodium azide, which produces large volumes of nitrogen gas. 1. Write a balanced chemical equation, including physical state symbols, for the decomposition of solid sodium azide (NaN) into solid sodium and gaseous dinitrogen. 2. Suppose 84.0 L of dinitrogen gas are produced by this reaction, at a temperature of 19.0 °C and pressure of exactly 1 atm. Calculate the mass of sodium azide that must have reacted. Round your answer to 3 significant digits. 미미

b If [OH ] 2.9 x 10¬10 M then РОН

18. (a) Molecule N₂H4 (1) + 2 H₂O2 (1) → N2(g) + 4 H₂O (1) Complete the following table: Lewis Dot Structure (use dots or lines to show bonds) (b) (c) (d) N₂H4 H₂O2 N₂ H₂O Calculate the AH°rxn using average bond energies (Table 9.4 in textbook) Calculate the AH°rxn using the standard enthalpies of formation (Appendix 2 in textbook) Why are these two values slightly different?

In liquid ammonia, NaH and NH3 react to form sodamide (NaNH2).  What happens when NaNH2 is placed in water? Use at least one balanced chemical equation in your explanation.

Upon heating 134 g MgSO4 · 7 H2O:(a) how many grams of water can be obtained? (b) how many grams of anhydrous compound can be obtained?

The airbags that protect people in car crashes are inflated by the extremely rapid decomposition of sodium azide, which produces large volumes of nitrogen gas. 1. Write a balanced chemical equation, including physical state symbols, for the decomposition of solid sodium azide (NaN) into solid sodium and gaseous dinitrogen. dlo 2. Suppose 12.0 L of dinitrogen gas are produced by this reaction, at a temperature of 13.0 °C and pressure of exactly 1 atm. Calculate the mass of sodium azide that must have reacted. Round your answer to 3 significant digits. Explanation Check O 2021 McGraw-Hill Education. All Rights Reserved. Terms of Use| Privacy | Accessibility > Activity Details You have viewed this topic MacBook Air 4) DI DD F10 F11 F9 F2 F3 F4 F1 10 #3 $ & 3. 4. 6. 8 9.

Does it make sense that LiH is more stable than other Group 1 hydride compounds?  (Choose the best answer.) YES - Lithium has the least covalent character of any of the Group 1 metals.   YES - Li+ is the smallest (hardest) of the Group 1 cations and hydride is a small (hard) anion.   NO - Lithium has a very high density compared to other Group 1 metals.   NO - Because of their similar sizes, Li+ and hydride ions should not interact very strongly.