A water molecule is comprised of two hydrogen atoms covalently bonded to an oxygen atom (Figure 4.9). The oxygen atom is highly electronegative and pulls the electrons associated with the hydrogen atoms toward it (Eisenberg and Kauzmann 1969, Kern and Karplus 1972, Fennema 1996b). This leaves a partial positive charge (5+) on each of the hydrogen atoms
FIGURE 4.9 Molecular structure and tetrahedral organization of water molecules.
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