3.2 Water Flashcards
What happens in polar molecules that makes them polar?
They have regions of negativity and regions of positivity
And the share of negative electrons is not shared equally
What are hydrogen bonds?
The bonds form between positive and native regions of a molecule with a hydrogen atom
Why does water have an unusually high boiling point?
Because the hydrogen bonding between more molecules take a lot of energy to increase the temperature of water and cause water to become gaseous
The hydrogen bonds need lots of energy to overcome Even though they are weak into molecular forces
Why is ice less dense than water?
The hydrogen bond formed fix the position of molecules slightly further apart then in liquid state
What does the cohesive properties of water do?
It allows water to move as one mass because the molecules are attracted to each other
This causes water droplets
This allows plants to be able to draw water up their roots
Why does water act as a universal solvent?
Because many solutes are able to dissolve in it
What does water allow to do in cells?
Water is able to transport dissolve compounds in and out of cells
How can water act as an insulator?
The water that freezes at the top of the sea axis and insulator
Why do organisms that live in water have the ability to survive because of water
Because water is stable so it does not change temperature become a gas easily therefore providing a constant environment and ice float forms on the surface of pond in lakes rather than from the bottom up so this insulating layer above the water below
