Water and Life Flashcards
1
Q
Polar Covalent Bonds
A
when electrons in a covalent bond are distributed unequally
2
Q
Polar
A
when a molecule’s overall charge is unequally distributed
3
Q
Cohesion
A
hydrogen bonds hold water molecules together
4
Q
Adhesion
A
clinging of one substance to another
5
Q
Surface Tension
A
hydrogen bonding of water molecules leads to a high surface tension
6
Q
Specific Heat
A
amount of heat needed to change temperature by 1 degree C for 1 g of a substance -> water has a high specific heat
7
Q
Hydrophilic
A
substance with affinity to water (some hydrophilic substance are to large to be dissolved by water, ie: cellulose)
8
Q
Hydrophobic
A
substance without affinity to water, nonionic/nonpolar -> repel water, can be caused by prevalence of C-H bonds
9
Q
pH
A
concentration of H+ = -log[H+]
