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Question
NaCl can be classified as a ________.A) gas
B) liquid
C) weak electrolyte
D) strong electrolyte
E) nonelectrolyte
Answer
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According to the Brnsted-Lowry definition,
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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.
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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.
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A chemical reaction has reached equilibrium when
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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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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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Q:
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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.
E) water is removed from the concentrated solution.
Q:
What volume of a 1.5 M KOH solution is needed to provide 3.0 moles of KOH?
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When 200. mL of water are added to 100. mL of 12% KCl solution the final concentration of KCl is (Assume the volumes add.)
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What is the molarity of a solution that contains 17 g of NH3 in 0.50 L of solution?
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Q:
An increase in the temperature of a solution usually
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C) 0.19 Eq
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Q:
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Q:
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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.
D) solid.
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Q:
STP stands for 25 C and 760 mmHg.
Q:
At STP, the molar volume of a gas is ________.