Chemistry: What is a Covalent Bond? - Polar & Nonpolar - Intramolecular Forces

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Covalent bonds are one of the 3 main types of intramolecular forces, along with ionic bonds and metallic bonds. Covalent bonds are the result of atoms sharing their valence electrons. Covalent bonds can be polar or nonpolar, depending on the electronegativities of the atoms involved in the bond.

We show five examples of covalent bonds using Lewis dot structure notation: HF, CO2, H2, H2O and CCl4.

Chemistry: What is a Covalent Bond? (Polar and Nonpolar)
LESSON CHAPTERS:

0:00 Intramolecular Forces
0:28 Definition of a Covalent Bond
0:42 Example 1: HF (single covalent bond)
1:23 Example 2: CO2 (double covalent bond)
2:09 Nonpolar covalent bonds
2:20 Example 3: H2
2:43 Polar covalent bonds
2:48 Example 4: H2O
3:58 Example 5: CCl4
4:39 Pauling Bond Polarity Scale (Linus Pauling)
5:15 Do covalent bonds break apart in water? (electrolytes)

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Kimberly Hatch Harrison received degrees in Biology and English Literature from Caltech before working in pharmaceuticals research, developing drugs for autoimmune disorders. She continued her studies in Molecular Biology (focusing on Immunology and Neurobiology) at Princeton University, where she began teaching as a graduate student. Her success in teaching convinced her to leave the glamorous world of biology research and turn to teaching full-time, accepting a position at an exclusive prep school, where she taught biology and chemistry for eight years. Kimberly co-founded Socratica Studios.

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