Chemistry

Question 1

no crystal lattice

Answer 1

liquid water

Question 2

crystal lattice forms

Answer 2

in ice

Question 3

which is more dense, water or ice

Answer 3

water is more dense

Question 4

polar molecules and ions dissolve readily in water

Answer 4

hydrophilic

Question 5

non polar molecules do not dissolve in water

Answer 5

hydrophobic

Question 6

water loving

Answer 6

hydrophilic

Question 7

water fearing

Answer 7

hydrophobic

Question 8

what is hydrophobic interaction

Answer 8

water forces nonpolar molecules together

Question 9

why do hydrophobic ineractions occur

Answer 9

minimizes the disruptive effects of non polar molecules on the hydrogen bonded water network

Question 10

name the chemical bonds (strong to weak)

Answer 10

covalent, h-bonding, ionic, hydrophobic, van der waals

Question 11

what is a mole

Answer 11

the amount of a substance in grams whose weight is equal to its molecular weight

Question 12

what is 1 molar solution

Answer 12

one mole of a compound dissolved in water to make one liter

Question 13

release/donate h+ ions

Answer 13

acids

Question 14

accept h+ ions

Answer 14

base

Question 15

what is a buffer

Answer 15

makes the overall solution resistant to pH change

Question 16

what do buffers react with

Answer 16

both acids and bases

Question 17

pH is defined as

Answer 17

the negative logarithm of h+ concentration in moles/liter

Question 18

name the macromolecules

Answer 18

lipids, sugars/carbohydrates, proteins, nucleic acids

Question 19

reaction to remove a monomer from a polymer

Answer 19

condensation reaction

water is released

Question 20

reaction to add a monomer from a polymer

Answer 20

hydrolysis

water is added