Chemistry Exam 6 – Flashcards
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What is the IUPAC name of the compound shown below? CH3-CH2-H-C=C
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cis-3-hexene
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An alkyne is an organic compound that contains a ________ bond.
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triple
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Organic compounds can only be made by living things because a "vital force" is needed for their production.
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false
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When naming an alkene, the parent chain is the longest carbon chain ________.
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that contains both atoms of the double bond
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According to the IUPAC convention, alkyl substituents on a hydrocarbon chain should be listed in which order?
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alphabetical without considering prefixes
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According to the IUPAC convention, alkyl group names should be located ________ of the name of the main chain.
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in front
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The simplest cycloalkane has ________.
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three carbon atoms
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Shampoos, perfumes, and plastics are organic compounds.
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True
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Which of the following is true of nonane, C9H20, which has a density of 0.79 g/mL, melts at -51 °C, and boils at 151 °C?
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Nonane floats on the surface of water
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Which of the following is not typical of most hydrocarbons?
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high melting point
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What is the IUPAC name for the following compound? CH3Cl l l CH3-CH-C-CH=CH l l CH3 CH3
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4-chloro-4,5-dimethyl-2-hexene
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All of the carbon-carbon bonds in benzene are ________.
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Identical
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A hydrocarbon contains only the elements ________.
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carbon and hydrogen
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The IUPAC name for CH3CH2C CCH3 is ________.
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2-pentyne
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An unsaturated compound always ________.
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contains at least one double or triple bond
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The skeletal formula shown is that of / / /
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pentane
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According to the IUPAC convention for chemical naming, which part of a hydrocarbon is selected as the main chain for a hydrocarbon chain?
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the longest continuous chain, regardless of bends
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What is the condensed structural formula for an alkane with four carbon atoms?
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CH3CH2CH2CH3
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Organic compounds usually contain carbon, hydrogen and metal atoms.
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false
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Carbon atoms always have how many covalent bonds?
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four
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A compound that contains the ring structure of benzene is called a(n) ________.
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aromatic compound
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What is the IUPAC name of the continuous chain alkane with six carbon atoms?
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hexane
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The compound below is named ________. / lOl /
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benzene
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What is the IUPAC name of CH3 | CH3- CH- CH2- CH2-CH3
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2-methylpentane
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When drawing a structural formula, the first step is to draw ________.
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the main carbon chain
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What is the condensed structural formula for the product of the reaction of 2-butene with water and a strong acid catalyst?
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OH | CH3-CH-CH2-CH3
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Some alkenes have geometric (cis-trans) isomers because ________.
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the carbon atoms in the double bond cannot rotate
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What is the condensed structural formula for the product of the hydrogenation of 2-butene using a platinum catalyst?
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CH3CH2CH2CH3
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The IUPAC name of CH3CH CHCH3 is ________.
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2-butene
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A formula that shows the arrangement of all bonds in a molecule is called a(n) ________.
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expanded structural formula
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The compound 1-butyne contains ________.
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a triple bond
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Solid alkanes are found on the surface of many fruits and vegetables.
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true
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The complete combustion of 1 mole of pentane, C5H12, will require how many moles of oxygen, O2?
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8 moles
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A hydrocarbon with a double bond is a(n) ________.
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alkene
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Organic compounds are always highly water soluble.
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false
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Organic compounds usually have low melting and boiling points.
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true
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What is the IUPAC name of the compound shown below? H CH2-CH3 / C=C / CH3 H
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trans-3-pentene
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How many valence electrons does carbon have?
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four
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The balanced equation for the complete combustion of C5H12 will give which of these product(s)?
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5CO2 + 6H2O
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What is(are) the product(s) of the complete combustion of any hydrocarbon?
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CO2 + H2O
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What is the condensed structural formula for the compound 3-hexene?
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CH3CH2CH CHCH2CH3
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What is the IUPAC name of CH3 | CH3- C- CH2- CH3 | CH3
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2,2-dimethylbutane
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What is the IUPAC name for a ten-carbon continuous-chain alkane?
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decane
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What is the name for a three-carbon saturated alkyl group?
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propyl
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In the three-dimensional structure of methane, CH4, the hydrogen atoms attached to a carbon atom are aligned ________.
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at the corners of a tetrahedron
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Isomers are molecules that share the same formula and have ________.
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a different arrangement of atoms within the molecule
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Organic liquids are usually less dense than water.
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true
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What is the IUPAC name for this alkane? CH2 - CH3 l CH3 -CH - CH - CH2 - CH3 l CH3
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3, 4-dimethylhexane
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What is the product of the reaction shown below? CH3- CH2- CH = CH2 + HOH
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OH | CH3-CH2-CH-CH3
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A cycloalkane ________.
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has two fewer hydrogen atoms than the corresponding alkane
