Molecular Structure and Properties: Octet Rule

For today’s starter activity, students were challenged to draw the molecular structures represented by the chemical equation for cellular respiration:

C6H12O6 + O2 -> H2O + CO2 + ATP

Many students were able to draw molecular oxygen (O2, with a double bond between the two oxygen atoms), water, and carbon dioxide (also with double bonds connecting the central carbon atom to the two oxygen atoms).  The molecular structure of glucose (C6H12O6) was far more challenging.  We transitioned into Lesson 32, which brought together the concepts of molecular structures, valence electrons, covalent bonding, and Lewis dot symbols.  We reviewed the Lesson 32 PowerPoint and then students worked in groups of four to complete the Lesson 32 worksheet.  To help students visualize molecular structures, we used the molecular modeling kits.  The kits were especially helpful in helping students understand double and triple bonds.

Leave a Reply

Please log in using one of these methods to post your comment:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s