Practice_Quiz_1 - Chemistry 322aL Practice Quiz 1(1 Draw...

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Chemistry 322aL Practice Quiz 1 (1) Draw the complete Lewis structures for the following compounds. Show all bonding electron pairs as dots or dashes, and all nonbonding electron pairs as dots. CH 4 methane N 2 ( 2) Provide detailed structures for compounds with the following formulas. The octet rule applies. Show all covalent bonds as lines and all nonbonding electron pairs as dots. CH 4 O H 2 CO answers C H H H H N N : : 8 valence electrons 10 valence electrons answers 14 valence electrons 12 valence electrons C H H H O H . . . . C H H O : :
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(3) Draw a Lewis structure for the acetate ion, [H 3 C 2 O 2 ] - . Show all bonding electron pairs as lines and all nonbonding electron pairs as dots. Follow the octet rule and assign the formal charge. answer There are 3 + 8 + 12 = 23 + 1 (charge) = 24 valence electrons. C O : : C H H H O . . . . : -
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(4) Draw the resonance structures and hybrid for the hydrogen sulfate anion, HSO 4 - . Answer There are 32 valence electrons: 1 + 6 + 24 = 31 + 1 (charge) = 32 Draw one Lewis structure that accounts for all the valence electrons and provides each O atom with an octet of electrons. Include the
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