Be sure to answer all parts. Determine Angas for each of the following reactions: (a) MgCO3(s) → MgO(s) + CO2(g) mol (b) 2 H2(g) + O2(g) → 2 H₂O(l) mol (c) HNO3(1) + CIF(g) → CIONO2(g) + HF(g) mol

Balance the following equations. (Use the lowest possible whole number coefficients. Include states-of- matter in your answers.) (a) Mn(s) + O2(g) → Mn2 07 (8) + (b) N₂(g) + O2(g) → N₂O(g) + (c) C10H22 (1) + O2(g) → CO₂(g) + H₂O(1) +

The organic molecules shown here are derivatives of benzene in which six-membered rings are “fused” at the edges of the hexagons. (a) Determine the empirical formula of benzene and of these three compounds. (b) Suppose you are given a sample of one of the compounds. Could combustion analysis be used to determine unambiguously which of the three it is? (c) Naphthalene, the active ingredient in mothballs, is a white solid. Write a balanced equation for the combustion of naphthalene to CO2(g) and H2O(g). (d) Using the Lewis structure for naphthalene and the average bond enthalpies in Table 8.4, estimate the heat of combustion of naphthalene in kJ/mol. (e) Would you expect naphthalene, anthracene, and tetracene to have multiple resonance structures? If so, draw the additional resonance structures for naphthalene. (f) Benzene, naphthalene, and anthracene are colorless, but tetracene is orange. What does this imply…

Write a balanced chemical equation for the hypothetical reaction of liquid dichloromethane, CH2CI2, with solid NaAaBb3 to form solid CH2(AaBb3)2 and another product.

What mass of methane is required to produce 1.130 kg of carbon dioxide during combustion? (Assume the reaction undergoes complete combustion.) CH4(g) + O2(g) → CO2(g) + H2O(g) O 411.8 g O 113.2 g O 24.5 g

Using the table provided, what is the enthalpy for the reaction shown below: 6H₂(g) + 4NO(g) + CH₂(g) → CO₂(g) + 2H₂O(l) + 4NH3 (9)

Ethanol, C₂H6 O, is most often blended with gasoline - usually as a 10 percent mix - to create a fuel called gasohol. Ethanol is a renewable resource and ethanol-blended fuels, like gasohol, appear to burn more efficiently in combustion engines. The combustion of one mole of ethanol releases 326.7 kcal of energy. The combustion of one mole of octane, C8 H18, releases 1.308 × 10³ kcal of energy. How much energy is released during the complete combustion of 460. grams of octane? kcal Assuming the same efficiency, would 460. grams of ethanol provide more, less, or the same amount of energy as 460. grams of octane? D more less the same amount Retry Entire Group 8 more group attempts remaining

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Choose the reaction that represents the combustion of C 6H 12O 2.     C6H12O2(l) + 8 O2(g) → 6 CO2(g) + 6 H2O(g)     Mg(s) + C6H12O2(l) → MgC6H12O2(aq)     6 C(s) + 6 H2(g) + O2(g) → C6H12O2(l)     C6H12O2(l) → 6 C(s) + 6 H2(g) + O2(g)     None of these represents the combustion of C6H12O2.

The first two steps in the industrial synthesis of nitric acid produce nitrogen dioxide from ammonia: 4 NH3(g) +50₂ (g) = 4 NO(g) + 6H₂O(g) K₁ K2 2 NO(g) + O₂(g) 2 NO₂ (g) = The net reaction is: K 4 NH3(g) +70₂ (g) 4NO₂(g) + 6H₂O(g) Write an equation that gives the overall equilibrium constant K in terms of the equilibrium constants K, and K₂. If you need to include any physical constants, be sure you use their standard symbols, which you'll find in the ALEKS Calculator. K = 0 0.0 00 09 ? olo X G