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Consider the following reaction at equilibrium. What effect will adding some C have on the system? CO2(g) + C(graphite) = 2 CO(g) Answer A. No effect will be observed since C is not included in the equilibrium expression. B. The equilibrium constant will decrease. C. The reaction will shift to the left in the direction of reactants. D. The equilibrium constant will increase. E. The reaction will shift to the right in the direction of products.
Calculate the potential of the cell. Indicate whether the reaction will proceed spontaneously in the direction considered (oxidation on the left, reduction on the right) or an external voltage source is needed to force this reaction to occur
A 100-watt lightbulb radiates energy at a rate of 100 J/s.(The watt, a unit of power, or energy over time, is defined as 1 J/s.) If all of the light emitted has a wavelength of 525 nm, how many photons are emitted per second
What is the silver ion concentration in a solution prepared by mixing 357 mL of 0.392 M silver nitrate with 469 mL of 0.504 M sodium phosphate?
Tell whether each of the experimental errors in excercise will affect the melting point of the unknown component.
Which of the following equations represents the proper net ionic equation for the complete neutralization reaction between the strong base KOH (aq) and the weak acid HF (aq)
How many total calories do you consume from these three organic substances when you eat 1 candy bar 3 times a day?
A bottle of 5.5 M acid has 21.3 mL remaining in it. If the acid is diluted to 700 mL, what is the new concentration of the acid?
Draw the best Lewis structure, and resonance contributors of equal energy (if any), for the molecule H2SO3 1- How many valence electrons are in your Lewis drawing
A certain metal hydroxide, M(OH)2, contains 32.8oxygen by mass. What is the identity of the metal
what is the pH after the addition of 2.7*10-2 moles of KOH to 3.6*10-2 moles HCl if the resulting solution volume is 150mL
Using the information below, what is the most stable form of sulfur at 298K and 1atm? (no calculations needed) S(rhomic): V=0.016, delta H formation=0, delta G formation=0, Standard molar S=31.8, standard molar Cp=22.64 S(monoclinic)
When completely filled with water, the beaker and its contents weigh 297.65 g. Use d=100 g/mL as the density of water. What volume does the beaker hold?
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