water Flashcards
(25 cards)
What is the molecular formula of water?
H2O
True or False: Water is a polar molecule.
True
What type of bond holds the hydrogen and oxygen atoms together in a water molecule?
Covalent bond
At what temperature does water freeze?
0 degrees Celsius
At what temperature does water boil at sea level?
100 degrees Celsius
What property of water allows it to form hydrogen bonds with other water molecules?
Polarity
What property of water allows it to have a high surface tension?
Hydrogen bonding
What property of water allows it to have a high heat capacity?
Hydrogen bonding
What property of water allows it to have a high heat of vaporization?
Hydrogen bonding
What is the pH of pure water at room temperature?
7
What is the term for the process by which water molecules move through a semipermeable membrane?
Osmosis
What is the term for the process by which water molecules move from an area of high concentration to low concentration?
Diffusion
What is the term for the phenomenon where water molecules stick to other substances?
Adhesion
What is the term for the phenomenon where water molecules stick to each other?
Cohesion
What is the term for the process by which water vapor turns into liquid water?
Condensation
What is the term for the process by which liquid water turns into water vapor?
Evaporation
What is the term for the process by which liquid water turns into solid ice?
Freezing
What is the term for the process by which solid ice turns into liquid water?
Melting
What is the term for the process by which water moves through plants from roots to leaves?
Transpiration
What is the term for the process by which water moves through soil?
Infiltration
why is ice less dense than water?
ice is a lattice
what bonds are formed between water molecules from the oxygen of one molecule to the hydrogen of the other?
hydrogen bonds
what does polar mean?
different charges on different parts of a molecule but no overall charge
what charge does the O have?
slight negative
