AP BIOLOGY

Detailed explanation-1: -Water is definitely polar: molecule based on the attraction of positive end of one h2o molecule & negative end of another. 1:Tap water would have the most Cohesion because the average number of drops was higher than the number of drops using salt water.

Detailed explanation-2: -Depending on how attracted molecules of the same substance are to one another, the substance will be more or less cohesive. Hydrogen bonds cause water to be exceptionally attracted to each other. Therefore, water is very cohesive.

Detailed explanation-3: -Water is highly cohesive, it is the highest of the non-metallic liquids.

Detailed explanation-4: -Cohesion of water Have you ever filled a glass of water to the very top and then slowly added a few more drops? Before it overflows, the water forms a dome-like shape above the rim of the glass. This dome-like shape forms due to the water molecules’ cohesive properties, or their tendency to stick to one another.