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What is the difference between expanded and condensed structural formulas?

Answer 1

Expanded structural formula shows all of the bonds in the compound.

Condensed structural formula omits most or all of the bonds.

Expanded structural formula shows all of the bonds connecting all of the atoms in the compound.

Condensed structural formula shows all atoms, but omits some or all of the vertical and horizontal bonds. It makes it easier to write the formula in a line.

Here are the different ways condensed structural formula can be represented:

Here's a video that shows how to draw structural formula for organic compounds - Expanded, Condensed and Skeletal form:

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Answer 2

Santiago Alfonso

Expanded structural formulas show all the atoms and bonds in a molecule, while condensed structural formulas show the connectivity of atoms, but do not explicitly show all the bonds and atoms.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.