Question

question 2 (mandatory) (3 points)
water is referred to as a polar molecule. describe the characteristics of a polar molecule.

Explanation:

A polar molecule has an uneven distribution of electron density. In water (\(H_2O\)), oxygen is more electronegative than hydrogen. So, the oxygen atom attracts the shared electrons more strongly. This creates a partial negative charge (\(\delta -\)) on the oxygen atom and partial positive charges (\(\delta +\)) on the hydrogen atoms. The molecule has a dipole moment, which is a measure of the separation of positive and negative charges within the molecule. Polar molecules can form hydrogen bonds (in the case of water, between the \(\delta -\) oxygen of one water molecule and the \(\delta +\) hydrogen of another water molecule). They also tend to dissolve in other polar solvents (like water - water solubility is high due to similar polar nature) and have relatively high boiling points compared to non - polar molecules of similar molecular weight (because of the intermolecular forces like hydrogen bonding).

Answer:

A polar molecule has an uneven electron - density distribution, creating partial charges. For example, in \(H_2O\), oxygen (\(\delta -\)) attracts electrons more than hydrogen (\(\delta +\)). It has a dipole moment, can form hydrogen bonds (if applicable), dissolves in polar solvents, and often has higher boiling points due to intermolecular forces related to polarity.