Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
25 Cards in this Set
- Front
- Back
|
a molecule whose opposite ends have opposite charges
|
polar
|
|
|
the bonds that hold hydrogen and oxygen atoms together in water molecules
|
single covalent
|
|
|
the bonds that form between the H and O ends of different water molecules
|
hydrogen bonds
|
|
|
the charge of the O end in a water molecule
|
slightly negative
|
|
|
the charge of the H end in a water molecule
|
slightly positive
|
|
|
the phenonmenon that accounts for water molecules clinging to one another; caused by H-bonding
|
cohesion
|
|
|
the clinging of one substance to another, such as water molecules to the sides of a glass tube
|
adhesion
|
|
|
a measure of how difficult it is to break or stretch the surface of a liquid
|
surface tension
|
|
|
a measure of the total kinetic energy in matter
|
heat
|
|
|
a measure of the average kinetic energy in matter
|
temperature
|
|
|
the amount of heat that must be absorbed or lost for 1 gram of a substance to change 1 degree Celsius
|
specific heat
|
|
|
the cooling of a surface due to the evaporation of molecules at the surface ("hottest" molecules leave)
|
evaporative cooling
|
|
|
a liquid that is a completely homogeneous mixture of two or more substances
|
solution
|
|
|
the dissolving agent in a solution
|
solvent
|
|
|
the substance that is dissolved in a solution
|
solute
|
|
|
a sphere of water molecules surrounding each dissolved ion in a solution
|
hydration shell
|
|
|
any substance that has an affinity for water
|
hydrophilic
|
|
|
non-ionic or nonpolar substances that repel water
|
hydrophobic
|
|
|
a single proton with a charge of +1
|
hydrogen ion
|
|
|
a water molecule that has lost a proton
|
hydroxide ion
|
|
|
a substance that increases the hydrogen ion concentration of a solution
|
acid
|
|
|
a substance that reduces the hydrogen ion concentration of a solution
|
base
|
|
|
the negative log of the hydrogen ion concentration in a solution
|
pH
|
|
|
a substance that can both accept and donate hydrogen ions in a solution
|
buffer
|
|
|
What happens to hydrogen ion concentration as pH increases by 3?
|
it decreases 1000 times
|
