Chapter 2: Q100P (page 84)
Give the name and formula of the compound whose molecules consist of two sulfur atoms and four fluorine atoms.
Short Answer
The name of the compound is disulfur tetrafluoride and the formula is
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Chapter 2: Q100P (page 84)
Give the name and formula of the compound whose molecules consist of two sulfur atoms and four fluorine atoms.
The name of the compound is disulfur tetrafluoride and the formula is
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The following charges on individual oil droplets were obtained during an experiment similar to Millikan's. Determine a charge for the electron( in coulombs), and explain your answer:
Cobalt-is the only stable isotope of this transition metal. Oneatom has a mass ofamu. Calculate the binding energy
(a) per nucleon in MeV;
(b) per atom in MeV;
(c) per mole in kJ.
When neptunium (Np) and plutonium (Pu) were discovered, the periodic table did not include the actinides, so these elements were placed in Group 7B(7) and 8B(8). When americium (Am) and curium (Cm) were synthesized, they were placed in Group 8B(9) and 8B(10). However, during chemical isolation procedures, Glenn Seaborg and his group, who had synthesized these elements, could not find their compounds among other compounds of these groups, which led Seaborg to suggest they were part of a new inner transition series.
(a) How do the electron configurations of these elements support Seaborg’s suggestion?
(b) The highest fluorides of Np and Pu are hexafluorides, as is the highest fluoride of uranium. How does this chemical evidence support the placement of Np and Pu as inner transition elements rather than transition elements?
The tap water found in many areas of the United States leaves white deposits when it evaporates. Is this tap water a mixture or a compound? Explain.
Use Dalton’s theory to explain why potassium nitrate from India or Italy has the same mass percents of K, N, and O.
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