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Question
Treatment of carbon monoxide poisoning can be accomplished by the use of pure oxygen for breathing. This is an example of the use of ________ in a clinical setting.A) the ideal gas law
B) Le Chtelier's principle
C) Henry's law
D) conservation of mass
E) a precipitation reaction
Answer
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Related questions
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Identify the Brnsted-Lowry acids in the following reaction.H2O + CO32- ->HCO3- + OH-A) H2O/HCO3-B) CO32-/HCO3-C) OH-/HCO3-D) CO32-/OH-E) H2CO3/H2O
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According to the Brnsted-Lowry definition,
A) an acid is a proton acceptor.
B) a base produces H+ ions in aqueous solutions.
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E) an acid acts as the solvent.
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A catalyst lowers the activation energy of a chemical reaction.
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For the following reaction, the equilibrium constant Kc is 2.0 at a certain temperature. Bromine can be liquefied easily and removed from the reaction vessel as it is formed. If this is done, how will it affect the equilibrium reaction?2NOBr(g) -> 2NO(g) + Br2(g)A) More products will be made as Br2 is removed.B) There will be a larger proportion NOBr in the vessel when equilibrium is reached.C) Less NO will be made.D) The pressure in the vessel will increase.E) The equilibrium constant will change.
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In an exothermic reaction, heat can be considered a
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B) product.
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In the reaction of nitrogen gas with oxygen gas to produce nitrogen oxide, what is the effect of adding more oxygen gas to the initial reaction mixture? The reaction is shown below.N2(g) + O2(g) -> 2NO(g)A) The equilibrium shifts to produce more N2.B) The equilibrium shifts to produce more NO.C) The equilibrium is not affected.D) Extra catalyst is required to reach equilibrium.E) The temperature of the reaction mixture is raised.
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B) regulation.
C) metabolism.
D) homeostasis.
E) catalysis.
Q:
When a reaction is at equilibrium,
A) all reaction stops.
B) no more reactants are converted to products.
C) the reaction is no longer reversible.
D) the forward and reverse reactions occur at the same rate.
E) the products and reactants have the same energy content.
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A chemical reaction has reached equilibrium when
A) the concentrations of reactants and products are equal.
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Using a kidney machine to remove waste products from the blood is known as ________.
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C) autolysis
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Methanol, CH3OH, can be classified as a ________.
A) gas
B) solid
C) weak electrolyte
D) strong electrolyte
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Q:
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C) weak electrolyte
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Q:
0.50 mole of KCl is added to 2.0 kg of water. The boiling point of the solution will be ________ the boiling point of pure water.
A) higher than
B) lower than
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B) starch outside
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D) water inside only
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Q:
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A) water
B) 0.5% NaCl
C) 2% glucose
D) 0.9% NaCl
E) 10% glucose
Q:
During the process of diluting a solution to a lower concentration,
A) the amount of solute does not change.
B) the amount of solvent does not change.
C) there is more solute in the concentrated solution.
D) the volume of the solution does not change.
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Q:
What volume of a 1.5 M KOH solution is needed to provide 3.0 moles of KOH?
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Q:
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How many grams of glucose are needed to prepare 400. mL of a 2.0%(m/v) glucose solution?
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Q:
An increase in the temperature of a solution usually
A) increases the boiling point.
B) increases the solubility of a gas in the solution.
C) increases the solubility of a solid solute in the solution.
D) decreases the solubility of a solid solute in the solution.
E) decreases the solubility of a liquid solute in the solution.
Q:
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D) 0.37 Eq
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Q:
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B) CaCl2, soluble in hexane
C) NaHCO3, soluble in water
D) CCl4, soluble in water
E) octane, soluble in water
Q:
When KCl dissolves in water
A) the Cl- ions are attracted to dissolved K+ ions.
B) the Cl- ions are attracted to the partially negative oxygen atoms of the water molecule.
C) the K+ ions are attracted to Cl- ions on the KCl crystal.
D) the K+ ions are attracted to the partially negative oxygen atoms of the water molecule.
E) the K+ ions are attracted to the partially positive hydrogen atoms of the water molecule.
Q:
A solution is prepared by dissolving 2 g of KCl in 100 g of H2O. In this solution, H2O is the
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C) solution.
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E) ionic compound.
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Which of the following molecules can form hydrogen bonds?
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Q:
STP stands for 25 C and 760 mmHg.