Studied by 5 people
solvent
Substance, typically a liquid, that can dissolve other substances; e.g., water
solute
A dissolved substance
hydrophilic
Describes a substance that dissolves easily in water; e.g., a salt Having a strong affinity for water
hydrophobic
Describes a substance that resists dissolving in water; e.g., an oil Lacking affinity for water
temperature
Measure of molecular motion
evaporation
Transition of a liquid to a gas; requires energy input
cohesion
Tendency of molecules to stick together under tension; a property of liquid water
hydrogen ions (H+)
an atom of hydrogen that has lost its electron. they are the key to the reactions of acids
hydroxide ions (-OH)
released from bases when added to water
pH scale
A measure of the number of hydrogen ions in a solution
acids
Any substance that releases hydrogen ions in water
bases
A substance that accepts hydrogen ions as it dissolves in water
salt
Compound that dissolves easily in water and releases ions other than H+ and OH-
buffer system
Set of chemicals that can keep the pH of a solution stable by alternately donating and accepting ions that contribute to pH
