ChemQuiz1

ChemQuiz1 - 1. /0.1 points Notes Question: Problem 2.47

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1. –/0.1 points Notes Question: Problem 2.47 Choose the answer below which gives the  correct  number of protons,  neutrons, and electrons in one atom of the designated isotope. a) An atom of the isotope  203 Tl +  contains 203 protons, 81 neutrons, and -1  electrons.   b) An atom of the isotope  49 Ti 4+  contains 22 protons, 27 neutrons, and 18  electrons.      c) An atom of the isotope  132 Ba 2+  contains 132 protons, 188 neutrons, and 2  electrons.   d) An atom of the isotope  201 Hg 2+  contains 80 protons, 201 neutrons, and 82  electrons.   e) An atom of the isotope  27 Al 3+  contains 13 protons, 14 neutrons, and 16  electrons.  
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2. –/0.1 points Notes Question: Problem 2.35 Choose the answer which gives the correct chemical symbol  and   classification (metal, metalloid or nonmetal) for the element named. a) The element called phosphorus is a metalloid with the chemical symbol  P.   b) The element called nitrogen is a metalloid with the chemical symbol  Ni.       c) The element called zinc is a metalloid with the chemical symbol Zr.   d) The element called arsenic is a metalloid with the chemical symbol As.  e) The element called lead is a metal with the chemical symbol Sn.   3. –/0.1 points Notes
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Question: Problem 2.43 Which of the choices gives the  correct  number of hydrogen atoms that a  molecule or collection of ions with the given formula contains? a) The formula (NH 4 ) 2 HPO 4  contains 7 hydrogens.   b) The formula C 6 (H 2 O) 6  contains 8 hydrogens.       c) The formula CH 3 CH 2 OH contains 7 hydrogens.   d) The formula CH 3 CH 2 Br contains 5 hydrogens.  e) The formula CH 3 (CH 2
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ChemQuiz1 - 1. /0.1 points Notes Question: Problem 2.47

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