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The combustion of glucose, a six-carbon sugar, is represented by the following balanced reaction: C6H12O6 + 6 O2 → 6 CO2 + 6 H2O If a reaction vessel initially contains 360 grams of C6H12O6 (MW = 180 g/mole), and if the…
Mg(OH)2 is slowly dissolved in 500 mL of 25oC water until the solution becomes fully saturated. Which of the following occurs when 10.0 mL of 0.1 M HCl is added? A. MgCl2 precipitates B. Mg(OH)2 precipitates C. Ksp for Mg(OH)2…
The molar heat capacities (J/mole K) for zinc, copper, silver, and gold is 25.2, 24.5, 24.9, and 25.6, respectively. If 1 mole of each substance is heated until the temperature increases by 10K, which metal required the addition of the…
What are the formal charges on oxygen A, carbon, and oxygen B in this resonance structure of CO2? A. -1, 0, -3 B. +2, 0, +2 C. +1, 0, -1 D. +5, +4, +7 Click for Explanation Formal charge =…
One mole of a compound consists of approximately 72g carbon and 6g hydrogen. What is its empirical formula? A. C6H6 B. CHO C. CH D. C6H12 Click for Explanation The empirical formula expresses the smallest number of atoms making up…
Sodium nitrate and ammonium sulfate react at 230ºC to yield sodium sulfate, nitrous oxide, and water vapor. If the total pressure of the products is 1.8 atm, what is the partial pressure of the nitrous oxide? The reaction is as…
The combustion of octane is a common reaction in automobile engines. 1) 2 C8H18 (l) + 25 O2 (g) → 16 CO2 (g) + 18 H2O (g) ΔH1 = -250 kJ/mole 2) 18 H2O (l) → 18 H2O (g) ΔH2 = 88…
Explanation Want more MCAT practice? We’ve got options for every schedule and learning style! From the best online MCAT course created by top instructors with 524+ MCAT scores to the most representative full-length practice exams and private tutoring, we can…
A conducting material may be characterized by all of the following EXCEPT: A. Flowing current B. The conduction of electrons from one nucleus to another C. Relatively low resistivity constants D. Metallic materials such as copper and aluminum
Increasing the pressure of a gas can result in all of the following changes EXCEPT: A. a decrease in the velocity of the gas molecules B. an increase in the ratio of the molecular volume to gas volume C. an…