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Introduction to electronegativity
Comparing electronegativity of carbon and oxygen
Comparing electronegativity of carbon and carbon
Comparing electronegativity of carbon and hydrogen
Defining the cutoff between polar and non-polar covalent bonds
Comparing electronegativity of oxygen and hydrogen
Comparing electronegativity of carbon and lithium
Comparing electronegativity of sodium and chlorine
Summary and importance of electronegativity
Introduction to hydrogen bonds and three example molecules
Explanation of the polarity of the molecules and the resulting partial charges
Description of how the partial charges lead to hydrogen bonds
Comparison of boiling points to illustrate the effect of hydrogen bonds
Clarification of the difference between hydrogen bonds and dipole-dipole forces
Examples of the importance of hydrogen bonds in biology