chapters 1 & 2 Flashcards
properties of water (8 cards)
what is polarity?
in a covalent bond, one part of the atom is more attracted to the shared electrons, so electrons stay around that part (making it partially negative)
what type of bond does water form with itself?
hydrogen bonds
what is cohesion?
attraction between molecules of the same substance
what is adhesion?
attraction with a molecule of a different substance
what is capillary action?
as an effect of cohesion and adhesion, sides of a liquid rise up and stick to the sides of the container
what are acids?
acidity is based on how much H30/H+ is in a solution
what are bases/alkalines?
solutions with a high concentration of OH-
what are buffers?
a solution of weak acid/base with conjugate acid/base that helps neutralize a strong acid/base
(does not change pH level after reaction)