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Sub Base

In which situation is water acting solely as a Bronsted-Lowry base?

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Lower Boiling Point Compound

A student has two unknown compounds. He discovers that one of the compounds is acetic acid (C2H4O2). He notes that the second compound has a lower boiling point than acetic acid. Which of the following must be true of the second unknown?

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Lewis Structure of N3-

Which of the following represents the best Lewis structure for N3–?

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VSEPR Geometry of HCN

The VSEPR geometry of a molecule of hydrogen cyanide (HCN) is which of the following?

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Lead and Chlorine Reaction

Which of the following is a correct stoichiometric reaction of lead (Pb2+) with chlorine ion?

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Photo attributed to Rudolf_Schuba.

Chemistry Lab Techniques

When smelling a chemical in a chemistry lab, which of the following is the proper technique?

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Under Pressure

A mixture of gases has a total pressure of 48 atmospheres. If there are a total of 4 gases of varying molecular weights in the mixture and the smallest and largest gases account for 75% of the total pressure, which of the following is the pressure of the remaining gases?

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7A Elements

Which of the following is true for the group 7A elements?

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Periodic Table

From the description, which Group of the Periodic Table do these elements belong?

Monatomic, chemically unreactive gases that possess the stable electron configurations that all Representative elements try to attain by undergoing chemical reactions.

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Strongest Acid

Which of the following alcohols would you expect to be the strongest acid?

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