Chapter 2.2

Question 1

What does it mean for water to be polar?

Answer 1

have slightly charged regions.

Question 2

Polar molecules have _______ _______ regions

Answer 2

slightly charged

Question 3

What is H2O made up of

Answer 3

H + OH-

Question 4

weak bond formed between slightly _______ hydrogen atoms

and slightly ______ oxygen atoms so partial

Answer 4

positive, negative

Question 5

charge on _ end and partial +

charge on other end

Answer 5

1

Question 6

can therefore attract 1 another allowing

for many of water’s special properties

Answer 6

polar molecules

Question 7

Polarity leads to ______ _______ of water

Answer 7

unique properties

Question 8

H bonds form between water molecules leading to

Answer 8

cohesion

& surface tension & capillary action

Question 9

water ____ to other water molecules

Answer 9

sticks

Question 10

bond that forms H2O

Answer 10

covalent bond

Question 11

bond that connects H20 with other molecules

Answer 11

hydrogen bond

Question 12

water sticks to other substances causing curve

in a meniscus

Answer 12

ADHESION

Question 13

water heats up slowly in large
bodies of water so the temp of water in the oceans does
not change drastically (Whew! What a relief for the fishies
and other life!)

Answer 13

specific heat capacity

Question 14

also _____ absorbs heat from body cells in order to
regulate temp control at cellular and organism levels
which helps with homeostasis

Answer 14

blood

Question 15

mixtures

Answer 15

solutions and suspensions

Question 16

(equally dissolved)

Answer 16

solution

Question 17

(non-dissolved and materials can settle out)

Answer 17

suspension

Question 18

H+ ions = ____ ions

Answer 18

OH-

Question 19

More __ ions than ___ ions in solution (acids)

Answer 19

H+, OH-

Question 20

More OH- ions than __ ions in a solution (bases)

Answer 20

OH-, H+

Question 21

Each pH value is

different by a factor of

Answer 21

10