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Question
The total pressure in a mixture of gases is equal to the partial pressure(s) ofA) the gas with the greatest number of moles.
B) the gas with the smallest number of moles.
C) the gas with the highest molecular weight.
D) the gas that occupies the largest volume.
E) all the gases added together.
Answer
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Related questions
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Q:
According to the Brnsted-Lowry definition,
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B) a base produces H+ ions in aqueous solutions.
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In an exothermic reaction, heat can be considered a
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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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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.
Q:
A chemical reaction has reached equilibrium when
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Q:
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Using a kidney machine to remove waste products from the blood is known as ________.
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Methanol, CH3OH, can be classified as a ________.
A) gas
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D) strong electrolyte
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Q:
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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
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A) water
B) 0.5% NaCl
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D) 0.9% NaCl
E) 10% glucose
Q:
During the process of diluting a solution to a lower concentration,
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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:
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Q:
An increase in the temperature of a solution usually
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Q:
When KCl dissolves in water
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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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STP stands for 25 C and 760 mmHg.