Condensed Lewis Diagrams and Constitutional Isomers

Question 1

What does the formation of an ionic compound require?

Answer 1

A large (negative) enough lattice enthalpy to compensate for ionization energy and electron affinity, and still lower the potential energy of the system

Question 2

What is the difference between molecular formulas and condensed formulas?

Answer 2

Molecular formulas do not provide information about atom-to-atom connectivity.

Question 3

When is a parantheses used in a condensed formula?

Answer 3

• Similar adjacent groups of atoms with a subscript showing their numbers
• Used to show a branched group

Question 4

What is a heteroatom?

Answer 4

Any atom other than carbon or hydrogen

Question 5

What do all compounds contain in this scenario?

Answer 5

Oxygen is always double bonded to carbon

Question 6

What are isomers?

Answer 6

Compounds that have the same molecular formula

Question 7

What are constitutional isomers?

Answer 7

Same molecular formula, but different atom-to-atom connectivity

Question 8

What are the three ways constitutional isomers can differ?

Answer 8

• type of functional group
• position of functional group
• the skeleton