Exam 2: Atoms, Molecules, and Ions

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The element X has three naturally occurring isotopes. The masses (amu)and % abundances of the isotopes are given in the table below. The average atomic mass of the element is __________ amu. The element X has three naturally occurring isotopes. The masses (amu)and % abundances of the isotopes are given in the table below. The average atomic mass of the element is __________ amu.

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The name of the ionic compound (NH4)3PO4 is __________.

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Which of the following compounds would you expect to be ionic?

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The correct name for Mg(ClO3)2 is __________.

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Which pair of elements below should be the most similar in chemical properties?

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Which atom has the smallest number of neutrons?

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Which one of the following is most likely to lose electrons when forming an ion?

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An empirical formula always indicates __________.

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The correct name for Na2O2 is __________.

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The correct name for HBrO is __________.

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The correct name for HClO2 is __________.

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Fluorine forms an ion with a charge of __________.

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The correct name for Al2O3 is __________.

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Which formula/name pair is incorrect?

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In the Rutherford nuclear-atom model, __________.

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The name of the binary compound N2O4 is __________.

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Which element in Group IA is the most electropositive?

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The correct name for H2SO3 is __________.

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Which one of the following polyatomic ions has the same charge as the hydroxide ion?

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The correct name for Ni(CN)2 is __________.

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