1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ksenya-84 [330]
3 years ago
11

The reduction potential (E0′) of a substance reflects its tendency to donate or accept electrons. The larger the difference (ΔE0

′) between the reduction potentials of the electron donor and the electron acceptor, __________.A) the greater the change in free energy (ΔG0′), and the less energy is releasedB) the closer the substances are on the electron towerC) the more enzymes will be required to catalyze the reaction(s)D) the greater the change in free energy (ΔG0′), and the greater the energy released
Chemistry
1 answer:
mote1985 [20]3 years ago
8 0

Answer:

The greater the change in free energy (ΔG0′), and the greater the energy released

Explanation:

Recall that the change in free energy is given by:

∆G°'= nFE°'

But E° is given by E°acceptor - E°donor

Hence the greater the difference between E°acceptor and E°donor, the greater the value of E° and consequently the greater the value of ∆G° and the energy released.

Note: E°acceptor and E°donor refer to reduction potentials of donor and acceptor

You might be interested in
about how long does it take for the reaction to reach equilibrium in this concentration versus time graph?
yarga [219]

Answer: option D. 4.5 seconds.


Explanation:


The equilibrium reaction is H₂O ⇄ H₂ + O₂


The chemical equilibrium is a dynamic one. Two reactions are happening symultaneously: the forward reaction (H₂O → H₂ + O₂) ,to the right, and the reverse reaction (H₂O ← H₂ + O₂), to the left. At equilibrium both reactions have the same rate, which makes that the total, measurable quantity of reactants and products remain constant.


In the figure you see:

  • The vertical axis measures concentration.
  • The horizontal axis measures time (seconds).
  • The two blue lines, the concentrations of H₂ and O₂, become flat (reach a zero slope) between 4 and 5 seconds.
  • The red line, the concentration of H₂O, becomes flat, also, between 4 and 5 seconds.
  • Hence, the concentrations of the reactant and the products do not change after that time meaning that the reaction has reached the equilibrium at about 4.5 seconds.


5 0
3 years ago
Read 2 more answers
Because both tin and carbon are members of Group 4A(14), they form structurally similar compounds. However, tin exhibits a great
Nitella [24]

Answer:

See Explanation

Explanation:

Elements in group fourteen are mostly known to form compounds in which there are four electron domains leading to a tetrahedral electron domain geometry.

However, the presence of lone pairs affects the shape of the molecule. SnCl3− has four electron domains, three of them are bond pairs while one is a lone pair. The shape of the molecule is based on a tetrahedron, however the observed geometry is trigonal pyramidal due to the presence of the lone pair. Its bond angle is now less than the predicted 109 degrees.

5 0
3 years ago
Hydrogen iodide decomposes according to the equation: 2HI(g) H 2(g) + I 2(g), K c = 0.0156 at 400ºC A 0.660 mol sample of HI was
Ira Lisetskai [31]

Answer:

[HI] = 0.264M

Explanation:

Based on the equilibrium:

2HI(g) ⇄ H₂(g) + I₂(g)

It is possible to define Kc of the reaction as the ratio between concentration of products and reactants using coefficients of each compound, thus:

<em>Kc = 0.0156 = [H₂] [I₂] / [HI]²</em>

<em />

As initial concentration of HI is 0.660mol / 2.00L = <em>0.330M, </em>the equlibrium concentrations will be:

[HI] = 0.330M - 2X

[H₂] = X

[I₂] = X

<em>Where X is reaction coefficient.</em>

<em />

Replacing in Kc:

0.0156 = [X] [X] / [0.330M - 2X]²

0.0156 = X² / [0.1089 - 1.32X + 4X² ]

0.00169884 - 0.020592 X + 0.0624 X² = X²

0.00169884 - 0.020592 X - 0.9376 X² = 0

Solving for X:

X = - 0.055 → False solution, there is no negative concentrations

X = 0.0330 → Right solution.

Replacing in HI formula:

[HI] = 0.330M - 2×0.033M

<h3>[HI] = 0.264M</h3>

7 0
3 years ago
Which pH corresponds with the acidic quality of the rainwater?<br> a.6<br> b.7<br> c.8<br> d.9
jeka94
The lower you go, the more acidic. The higher you go, the more alkaline. Your answer would most likely be 6.
8 0
3 years ago
Draw the structural formula for 3-ethyl-3-methyl-1-pentyne. Click the "draw structure" button to launch the drawing utility.
Dima020 [189]

Answer:

See attached picture.

Explanation:

Hello,

In this case, for the given name, you can verify the structure on the attached picture, wherein you can see verify the presence of both the ethyl and methyl radicals at the third carbon as well as the triple bond at the first carbon.

Best regards.

6 0
3 years ago
Other questions:
  • Complete the balanced molecular reaction for the following weak acid with a strong base:HNO2(aq) + Ca(OH)2 (aq)
    14·1 answer
  • Use the graph to determine which is greater, the heat of fusion or the heat of vaporization. Explain how you used the graph to d
    6·1 answer
  • What is the molar mass of NaCl (table salt)?
    12·1 answer
  • What type of molecular attraction accounts for the high boiling point of H2O
    10·1 answer
  • Which of the following phase changes is exothermic?
    9·1 answer
  • Samantha AS
    13·1 answer
  • When Maya visited the Grand Canyon on a school trip she made some observations while standing at the top of the canyon. She saw
    7·1 answer
  • Iron-59 which is used to diagnose anaemia has a half life of 45days, what fraction of it is left in 90 days
    15·1 answer
  • Choose the true statement.
    7·1 answer
  • Compare the appearance of the water in the pot with that of the water in the plastic bowl. What do you notice? Next, taste the w
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!