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Category > Chemistry Posted 13 Feb 2024 My Price 8.00

Chemistry Principles EHS Unit 7 Quiz

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 

Answers

(118)
Status NEW Posted 13 Feb 2024 04:02 AM My Price 8.00

Che-----------mis-----------try----------- Pr-----------inc-----------ipl-----------es -----------EHS----------- Un-----------it -----------7 Q-----------uiz-----------

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1707797341-Faith Andrews Quiz History Unit 7 Quiz.pdf
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