CHEM

Question 1

refers to the state in a chemical reaction wherein the concentrations of the reactants and the products remain constant

Answer 1

Chemical Equilibrium

Question 2

Chemical equilibrium is also called as ___ ( in which the rates of the forward and reverse reactions are the same)

Answer 2

Dynamic Equilibrium

Question 3

enables the commercial production of ammonia from combining nitrogen gas with hydrogen gas (important reaction)

Answer 3

Haber Process

Question 4

In 1864, two Norwegian scientists proposed the law of mass action to explain why chemical equilibrium occurs

Answer 4

Cato Guldberg and Peter Waage

Question 5

may shift in favor of either the reactants or the products depending on certain factors

Answer 5

Chemical equilibria

Question 6

Factors that may influence chemical equilibrium

Answer 6

concentration, temperature, and pressure

Question 7

describes the extent the reaction favors either the forward reaction or the reverse reaction at equilibrium

Answer 7

magnitude of K

Question 8

direction of the reaction that is favored can be determined by

Answer 8

obtaining Q and then comparing it to K

Question 9

If the reaction quotient is smaller than the equilibrium constant

Answer 9

reaction shifts to the right side to give the products

Question 10

equilibrium constant can be derived from the partial pressures of gaseous components instead of molar concentrations

Answer 10

gaseous mixture at equilibrium

Question 11

one of the important concepts used in our everyday life, concepts of chemical equilibrium are applied to acid-base reactions

Answer 11

Acid-base

Question 12

compounds that have sour taste

Answer 12

acids

Question 13

compounds that have a bitter taste and slippery feel

Answer 13

Bases or alkalis

Question 14

most vital chemical processes in both chemical and biological systems involve acid-base reactions in ____

Answer 14

aqueous solutions

Question 15

formed when a proton is transferred to water (as a base)

Answer 15

conjugate acid

Question 16

formed after a proton is lost

Answer 16

conjugate base

Question 17

involve the transfer of protons from an acid to a base

Answer 17

neutralization reactions

Question 18

can act as both a base and an acid

Answer 18

Water

Question 19

measures how acidic or basic a substance is ; determined using a pH paper or a pH meter to express the acidity or basicity of a solution

Answer 19

pH scale

Question 20

helps us understand how substances can be used and handled due to their corrosiveness

Answer 20

pH of substance

Question 21

pertains to the amount of acid per liter of solution

Answer 21

Concentration

Question 22

different from a strong acid

Answer 22

concentrated acid

Question 23

gives the equilibrium position of its
dissociation reaction in aqueous solution

Answer 23

acid strength

Question 24

completely dissociated in solution at equilibrium

Answer 24

strong acid

Question 25

partially dissociated in an aqueous solution

Answer 25

weak acid

Question 26

acid containing one replaceable hydrogen ion

Answer 26

monoprotic acid

Question 27

acids that have multiple protonsa

Answer 27

polyprotic acids

Question 28

acid compounds wherein the replaceable hydrogen is always bonded to an oxygen

Answer 28

Oxoacids

Question 29

determined by the strongest substances in terms of their acidity or basicity

Answer 29

strength of the solution formed by salts

Question 30

break up into ions when dissolved in water

Answer 30

Salts or ionic compounds

Question 31

contains an electrolyte which conducts electricity and allows charges to move across the two solutions without allowing the solutions to mix

Answer 31

Electrolysis

Question 32

destruction of a metal surface

Answer 32

corrosion

Question 33

when the cell potential is positive

Answer 33

galvanic

Question 34

measured by its ionization constant

Answer 34

strength of a weak acid or weak base

Question 35

occurs in anode

Answer 35

Reduction

Question 36

occurs in cathode

Answer 36

Oxidation

Question 37

proton-donors

Answer 37

acids

Question 38

proton acceptors

Answer 38

bases

Question 39

occurs in galvanic cells

Answer 39

Electrolysis

Question 40

obtained by subtracting from the cathode half-reaction

Answer 40

Salt Bridge

Question 41

used as a measure of concentration of a solution

Answer 41

pH

Question 42

deals with interconversion of electrical and chemical energy

Answer 42

Electrochemistry

Question 43

can be determined by Handerson-Hasselbach equation

Answer 43

pH of a buffer solution

Question 44

can be balanced by the change in oxidation state method

Answer 44

redox reaction

Question 45

compound can be an ___ or ____

Answer 45

electrolyte or nonelectrolyte

Question 46

produces the current obtained from cells and batteries

Answer 46

Spontaneous reaction