Question

a polar molecule is best described as... none of these. a molecule that has hot and cold ends. a molecule that is very cold. having positive and negative ends.

Explanation:

A polar molecule has a distribution of electrical charge, resulting in regions with partial positive and partial negative charges. The description "having positive and negative ends" aligns with this concept. The options "a molecule that has hot and cold ends" and "a molecule that is very cold" are incorrect as polarity is about charge distribution, not temperature.

Answer:

having positive and negative ends.