🩷 Unit 2: Acids, Bases, pH

Question 1

Acid

Answer 1

dissociates in a solution, releases a hydrogen ion and anion

Question 2

Strong Acid

Answer 2

low pH, almost completely dissociates
ex: HCl —-> (H+) + Cl-

Question 3

Weak Acid

Answer 3

release very few H+ ions, won’t completely dissociate
ex: H2CO3 —-> (H+) + HCO3-

Question 4

Base

Answer 4

dissociates in a solution, releases hydroxide ion and cation

Question 5

Strong Base

Answer 5

high pH, almost completely dissociates
ex: NaOH —-> Na+ + (OH-)

Question 6

Weak Base

Answer 6

release very few OH- ions, won’t completely dissociate
ex: NH3 + H2O —-> (OH-) + NH4+

Question 7

What do strong acids and strong bases do together?

Answer 7

neutralize each other producing salt and water

Question 8

What do weak acids and weak bases often act as?

Answer 8

buffers to maintain pH

Question 9

Salt

Answer 9

ionic compound consisting of any cation and anion except H+ and OH-

Question 10

pH Scale

Answer 10

measures amount of hydrogen (H+) and hydroxide (OH-) in a solution on a scale of (0-14)

Question 11

pH of 7

Answer 11

neutral

Question 12

Below pH of 7

Answer 12

acidic

Question 13

Above pH of 7

Answer 13

basic/alkaline

Question 14

What does it mean if the pH is low?

Answer 14

greater concentration of hydrogen ions

Question 15

Buffer

Answer 15

stabilizes pH by binding or releasing H+ ions