AP BIOLOGY

Detailed explanation-1: -Oxygen in water is negative because a negative charge, unlike a positive, can be stabilized using ground state ionic resonance structures.

Detailed explanation-2: -The oxygen is the negative end of the molecule, while the area between the hydrogen atoms is the positive end of the molecule. Figure 15.1. 2: Water is a polar molecule, as greater electron density is found around the more electronegative oxygen atom.

Detailed explanation-3: -The oxygen atom is slightly negatively charged, and the carbon and hydrogen atoms are slightly positively charged. The polar bonds of the hydroxyl group are responsible for the major reaction characteristics of alcohols and phenols.

Detailed explanation-4: -Water is a Polar Covalent Molecule The unequal sharing of electrons between the atoms and the unsymmetrical shape of the molecule means that a water molecule has two poles-a positive charge on the hydrogen pole (side) and a negative charge on the oxygen pole (side).

Detailed explanation-5: -Because oxygen is more electronegative-electron-greedy-than hydrogen, the Ostart text, O, end text atom hogs electrons and keeps them away from the Hstart text, H, end text atoms. This gives the oxygen end of the water molecule a partial negative charge, while the hydrogen end has a partial positive charge.