6.2 Quiz

What smell does ethylthiol (C₂H₆S) have?

• fishy
• minty
• sweet
• skunky
• putrid

How can two molecules have identical formulas but different names and smells?

• the atoms are arranged differently
• they are in different environments
• their smells change over time
• one is made of nonmetals the other is made of metals
• one is ionic and the other is covalent

What kind of formula shows how the atoms in a molecule are arranged and where they are connected?

• chemical formula
• structural formula
• formula unit
• molecular formula
• covalent formula

What do you call molecules with the same molecular formula and different structural formulas.

• isomers
• compounds
• elements
• cations
• isobars

What is the molecular formula for the structure shown?

• C₄H₁₁N
• C₃H₁₁N₂
• C₂H₁₂N
• CHN
• C₂H₁₀O

What is the molecular formula for the structure shown?

• C₂H₄O₂
• C₂H₄O
• CHO
• C₃H₂O₂
• C₂H₄

Which of the following are isomers? (select all that apply)

• a

• b

• c

• d

• none of these are isomers

Which of the following are isomers? (select all that apply)

• none of these are isomers
• a
• b
• c
• d

Which of the following are isomers? (select all that apply)

• a
• b
• c
• d
• none of these are isomers

Which of the following two are NOT isomers? (select all that apply)

• Molecule 1
• Molecule 2
• Molecule 3
• Molecule 4