The world’s Largest Sharp Brain Virtual Experts Marketplace Just a click Away
Levels Tought:
Elementary,Middle School,High School,College,University,PHD
| Teaching Since: | Apr 2017 |
| Last Sign in: | 89 Weeks Ago, 6 Days Ago |
| Questions Answered: | 7570 |
| Tutorials Posted: | 7352 |
BS,MBA, PHD
Adelphi University/Devry
Apr-2000 - Mar-2005
HOD ,Professor
Adelphi University
Sep-2007 - Apr-2017
Question 1
1 / 1 pts
The __________ number of an atom is described as its charge if all polar covalent and ionic bonds caused a complete eletro transfer to the atom with the higher electronegativity from the atom with the lower electronegativity.
oxidation
reduction
mass
element
IncorrectQuestion 2
0 / 1 pts
Which of these is classified as an reduction process?
loss of electrons
loss of hydrogen
gain of oxygen
loss of oxygen
Question 3
1 / 1 pts
If the conditions are in favor of product formation, the reaction is termed __________.
kinetic
thermodynamic
inert
spontaneous
Question 4
1 / 1 pts
Which of the following accurately defines pH?
-log[H+]
-log[HCl]
-log[H2O]
-log[OH+]
Question 5
1 / 1 pts
An acid would turn blue litmus paper __________.
yellow
white
red
blue
Question 6
1 / 1 pts
The reaction quotient is represented by which of the following?
S
K
Q
T
Question 7
1 / 1 pts
An Arrhenius base is one that produces _________ when dissolved in water.
nitric acid
hydrogen ions
hydrochloric acid
hydroxide ions
Question 8
1 / 1 pts
A Brønsted-Lowry _____ is able to accept protons.
base
isotope
acid
gas
Question 9
1 / 1 pts
Entropy measured at 1 atm of pressure and 25°C is termed __________ entropy.
kinetic
absolute
potential
standard
Question 10
1 / 1 pts
An acid would __________.
react with bases to create a neutral solution
turn red litmus paper blue
react with other acids to produce a neutral solution
have a slippery feeling
Question 11
1 / 1 pts
__________ is a measure of probability.
Entropy
Enthalpy
Kinetic energy
Partial pressure
Question 12
1 / 1 pts
__________ is a laboratory technique used to measure the concentration of an acid or base in a solution.
Titration
Sublimation
Distillation
Crystallization
Question 13
1 / 1 pts
A ΔG° value of ____kJ/mol will favor product formation over reactant formation.
0
25
100
-12.7
Question 14
1 / 1 pts
If the reaction quotient (Q) is __________ than the equilibrium constant( Keq) then the reverse reaction is favored.
greater
less
lower
equal to
Question 15
1 / 1 pts
Which of these is classified as an oxidation process?
gain of electrons
loss of oxygen
gain of oxygen
gain of hydrogen
Question 16
1 / 1 pts
If the reaction quotient (Q) is __________ than the equilibrium constant (Keq) then the reaction is at equilibrium.
equal to
greater
more
less
Question 17
1 / 1 pts
An acid and a base reaction is also referred to as a __________ reaction.
neutralization
vaporization
inert
pressure
Question 18
1 / 1 pts
Which of these is classified as an reduction process?
addition of hydrogen
gain of oxygen
loss of electrons
loss of hydrogen
Question 19
1 / 1 pts
A base would __________.
turn red litmus paper blue
react with certain metals to produce hydrogen gas
react with other bases to create a neutral solution
turn blue litmus paper red
Question 20
1 / 1 pts
A pH of __________ would be considered basic.
3
1
7
11
Question 21
1 / 1 pts
In an aqueous solution, if [H3O+]>[OH-] then the solution is called __________.
radioactive
acidic
basic
neutral
Question 22
1 / 1 pts
The deprotonated form of an acid is commonly called its __________ base.
ionic
conjugate
polar
dipole
Question 23
1 / 1 pts
In an aqueous solution, if [H3O+]-] then the solution is called __________.
neutral
acidic
radioactive
basic
Question 24
1 / 1 pts
__________ free energy is a concept that combines enthalpy and entropy into one value.
Charles
Williams
Potential
Gibbs
Question 25
1 / 1 pts
A ΔG° value of ____kJ/mol will favor equilibrium.
-37.2
100
0
25
Che-----------mis-----------try----------- Pr-----------inc-----------ipl-----------es -----------EHS----------- Un-----------it -----------7 Q-----------uiz-----------