AP BIOLOGY

BIOCHEMISTRY

PROPERTIES OF WATER

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What property allows solid ice to float in liquid water?
A
high specific heat
B
density
C
adhesion
D
cohesion
Explanation: 

Detailed explanation-1: -Because ice is less dense than water, it is able to float at the surface of water.

Detailed explanation-2: -What’s so special about ice that causes it to float? Believe it or not, ice is actually about 9% less dense than water. Since the water is heavier, it displaces the lighter ice, causing the ice to float to the top.

Detailed explanation-3: -The solid states of other liquids are denser because the molecules pack together tightly when the kinetic energy (temperature) decreases. The hydrogen bonds in water ice are indeed strong, but their orientation causes molecules to push apart, actually lowering density.

There is 1 question to complete.