Which of these structures represent the same compound? CH₂ CH3 CH₂ CH₂ CH3 H3C CH (B) CH₂ CH2 CH3 H3C CH₂. (C) CH (A) A and B are the same compound. A and C are the same compound. B and C are the same compound All three structures represent the same compound. The three structures represent three different compounds. CH3 -CH3

Which of following structures represents the structural formula for methane, CH? H H-C- Н Н H-C-H H И Н он-с-с-н Он Н C- C H H Н

Give the common name for 0 || CH3 C−N–CH,–CH,—CH3 Spell out the common name of the compound. Part F CH3 Submit Request Answer Give the IUPAC name for O CH₂ CH3 C-N–CH–CH3 Spell out the IUPAC name of the compound.

A model of a cycloalkane appears in the window below. ball & stick labels Which of the following represent structural isomers of the molecule shown in the model? Choose all that apply. ҫHз CH2 CHз Cн -CH2 Cн, CCH-CHz-CH3 CH CH3 CH3-CH-CH2-CH сHз CH -CH сн -CH2 CH3 сHз CH CH2

Which of these structures represents an improper structure (one in which one or more atoms does not have the normal number of bonds)? CH₂ CH₂ CH,CH,CH,CH, CHy (1) H₂C 000000 CH₂ CH₂ (1) (2) (3) (4) (5) (6) CH₂ CH₂ (4) CH3 H₂C CH₂ (2) CH₂CHCH₂CH₂ CH₂ (5) (CH3C CH₂CH(CH3)2 (3) (CH3CH₂CH₂CH3)2 (6)

Provide the following: 1. expanded structural formula 2. Molecular formula " CH3 CH2 | CH2 — CH2 — СH — CHF — CH2 — СНЗ CH2 CH3

Draw the skeletal structures for these two molecules:

Analyze the two Newman projections and determine the relationship between the two. How would you describe the relation between conformations when they are maintained at a temperature too low to permit them to interconvert? CH3 CH3 Br. H H H H A. Identify the relationship. They are identical. They are structural isomers. They are stereoisomers. They are conformers. H H -I H Br H B. What is the relationship at low temperatures? They are identical. They are conformational diastereomers. They are structural isomers. They are conformational enantiomers.

1. Use a Newman projection about the indicated bond to draw the most stable conformer for each compound. (a) 3-methylpentane about the C2 ¬ C3 bond (b) 3,3-dimethylhexane about the C3 ¬ C4 bond2. refer to the questions below:

Give the systematic name of each of the compounds shown in the picture.