General Chemistry: Media Enhanced Edition, 8th Edition

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Names: _____ KEY ___________________ CHEM 130: Disc. 215 GSI: Lauren Goodrich ____________________________ QUIZ 2 ____________________________ 1. Iron(III) sulfate is reacted with ammonia and water to form iron(III) hydroxide and ammonium sulfate. a. Write the complete balanced equation for the reaction above. (4 points) Fe 2 (SO 4 ) 3 + 6NH 3 +6H 2 O 2Fe(OH) 3 + 3(NH 4 ) 2 SO 4 b. Write the nucleotide symbol for iron if it has 26 protons, 27 neutrons, and 24 electrons. (2 points) 53 Fe 2+ 26 2. Name the following compounds. (2 points) a. Sn(ClO 4 ) 2 . 6H 2 0 Tin(II) perchlorate hexahydrate b. CaH
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Unformatted text preview: 2 Calcium Hydride 3. Write the chemical formula for the following compounds. (2 points) a. lithium chromate Li 2 CrO 4 b. silver nitrite AgNO 2 4. The element Magnesium contains three naturally occurring isotopes. The atomic weight of magnesium is 24.l305amu. Given the following information, calculate the two missing fractional abundances. Show all work and report your answer to 3 significant figures. (4 points) Isotopic Mass (amu) Fractional Abundance (%) 23.9850 x 24.9858 10.00 25.9826 y x = 87.7% y = 2.27%...
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