
Q4 General Chemistry 2 Summative Test
Quiz by HEIDI LIZA DE MESA
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In which of the following physical states does a given substance have the highest entropy?
Which of the following describes an endergonic reaction?
What are the two factors that determine whether a reaction is spontaneous or nonspontaneous?
In which of these systems is the entropy decreasing?
Which of the following refers to all spontaneous processes?
What is the expression for Keq for this reaction?
             2H20(g) → 2H2(g)+ 02(g)
In an equilibrium reaction with a Keq of 1 x 108, which of the following is true?
What is the effect of adding more CO2 to the following equilibrium reaction?
                         CO2 + H2O → H2CO3
Doing which of the following generally increases the entropy of a substance?
The Keq of a reaction is 4 x 10-7. At equilibrium:
Two opposing reactions (A + B ⇄ C + D) occurring simultaneously at the same rate is an example of:
Exergonic reactions:
A reaction is most likely to be spontaneous when during the course of a reaction -
The amount of disorder in a system is measured by its: Â Â Â
On a cold day water vapor condenses to form frost. This represents an: Â Â
Who is this person who originally defined the acids and bases and stated that acids were compounds that increased the concentration of hydrogen ions (H+) in solution, whereas bases were compounds that increased the concentration of hydroxide ions (OH–) in solutions?
Aside from water's capability of acting as either an acid or a base, it can also undergo ___________.
Acids and bases will neutralize one another to form:
The equilibrium constant of water has a value of:
The term pH refers to the:
How is a buffer used?
In preparing a solution with an acid and its conjugate base, it is done by dissolving the acid form of the buffer in about how many percent volume of water to obtain the final solution volume required? Â Â Â Â Â Â
The greater the value of Ka, the __________ the pH of the solution.
           Â
pKa is equal to:
If a strong base is added to the mixture, the hydrogen ion concentration decreases by less than the amount expected for the quantity of base added. This is because: