Chapt 2.2

Question 1

(T or F) Polar molecules have 2 regions with a slight positive charge.

Answer 1

false

Question 2

Which property allows water to resist changes in temp?

Answer 2

high specific heat

Question 3

Which property causes water to form beads?

Answer 3

cohesion

Question 4

Which property of water helps plants transport water from their roots to their leaves?

Answer 4

adhesion

Question 5

A solution is a mixture of substances that is (evenly/unevenly) distributed throughout the entire mixture.

Answer 5

evenly

Question 6

Blood plasma is an example of a (solvent/solute).

Answer 6

solvent

Question 7

“Oil and water don’t mix” because (polar/nonpolar) molecule can’t easily dissolve in a polar solvent

Answer 7

nonpolar

Question 8

A __ dissolves in a solution.

Answer 8

solute

Question 9

adhesion

Answer 9

the attraction among molecules of diff substances

Question 10

cohesion

Answer 10

attraction among molecules of a substance

Question 11

(T or F) Slightly charged regions of water molecules form hydrogen bonds

Answer 11

true

Question 12

(T or F) Water is a polar

Answer 12

True

Question 13

solution

Answer 13

a mixture of substances that is the same throughout; a homogeneous mixture

Question 14

solvent

Answer 14

the substance that is present in the greater amount and that dissolves the solute

Question 15

solute

Answer 15

a substance that dissolve in a solvent

Question 16

acid

Answer 16

a compound that releases a proton (hydrogen ion (h+))

Question 17

bases

Answer 17

compounds that remove the H+ ions from a solution

Question 18

pH

Answer 18

scale of H+ concentration