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
UkoKoshka [18]
3 years ago
8

Which type of cell is associated with the statements below? Fill in the blank with either (voltaic cell, electrolytic cell, both

).
Non-spontaneous reaction occurs:
Spontaneous reaction occurs:
Oxidation occurs at anode:
Electrolyte supports electron flow:
Chemistry
1 answer:
Black_prince [1.1K]3 years ago
5 0

Answer:

Non-spontaneous reaction occurs: electrolytic cell.

Spontaneous reaction occurs: voltaic cell

Oxidation occurs at anode: both

Electrolyte supports electron flow: both

Explanation:

You might be interested in
Which metal will spontaneously react with Zn2+(aq), but will not spontaneously react with Mg2+(aq)?
DerKrebs [107]
Correct Answer: option <span>(1) Mn(s)

Reason: 
The </span><span>spontaneity of electrochemical cell, depends on the it's Eo value. Electrochemical cells with positve Eo are spontanous and vice-versa.
</span>
In present case, the  Eo of half-cell of interest are as follows:
Eo Zn2+/Zn = <span>-0.763v
</span>Eo Mg2+/Mg = 2.37v
Eo Mn2+/Mn = -1.18v

Therefore, Eo cell (with Zn as one of the half-cell) =  Eo Zn2+/Zn - Eo Mn2+/Mn
                                                                                =  -0.763 - (-1.18)
                                                                                = 0.417v

On other hand, Eo cell (with Mg as one of the half-cell) =  Eo Mg2+/Zn - Eo Mn2+/Mn
                                                                                =  -2.37 - (-1.18)
                                                                                = -1.19v

Thus, Mn(s) <span>metal will spontaneously react with Zn2+(aq), but will not spontaneously react with Mg2+(aq)</span>
8 0
3 years ago
1.5 mol sample he occupies a volume of 2.5 L at a pressure of 14.7 atm what will be the pressure of a 1.5 mol sample of h2 gas u
Sergio039 [100]

Answer:

Under the same conditions, the pressure of a 1.5 mol H2 sample is 14.7 atm

Explanation:

Step 1: Data given

Number of moles He = 1.5 moles

Volume = 2.5 L

Pressure of the He sample = 14.7 atm

Step 2: Calculate pressure of H2 gas

p(He) * V(He) = n(He) *R*T

⇒Pressure of Helium gas = 14.7 atm

⇒ Volume of the helium sample = 2.5L

⇒ The number of moles He = 1.5 moles

⇒R = the gas constant = 0.08206 L*atm/mol*K

⇒T = The temperature

p(H2) * V(H2) = n(H2) *R*T

Since the conditions are the same:

-Volume of both samples is 2.5L

- Temperature for both is the same

- the gas constant for both is the same (constant)

- The number of moles for both samples is 1.5 moles

Since all the factor are the same, the pressure will also be the same = 14.7 atm

⇒ Volume of the h2 sample = 2.5L

⇒ The number of moles H2 = 1.5 moles

⇒R = the gas constant = 0.08206 L*atm/mol*K

⇒T = The temperature = same temperature

⇒Pressure of H2 gas = 14.7 atm

Under the same conditions, the pressure of a 1.5 mol H2 sample is 14.7 atm

5 0
4 years ago
Given the two reactions PbCl2(aq)⇌Pb2+(aq)+2Cl−(aq), K3 = 1.85×10−10, and AgCl(aq)⇌Ag+(aq)+Cl−(aq), K4 = 1.17×10−4, what is the
kramer

Answer:

The equilibrium constant of the given reaction is 0.01351.

Explanation:

PbCl_2(aq)\rightleftharpoons Pb^{2+}(aq)+2Cl^-(aq)

The equilibrium constant of the reaction = K_3=1.85\times 10^{-10}

K_3=\frac{[Pb^{2+}][Cl^-]^2}{[PbCl_2]}...[1]

AgCl(aq)\rightleftharpoons Ag^{+}(aq)+Cl^-(aq)

The equilibrium constant of the reaction = K_4=1.17\times 10^{-4}

K_4=\frac{[Ag^+][Cl^-]}{[AgCl]}..[2]

[Cl^-]=\frac{K_4\times [AgCl]}{[Ag^+]}

PbCl_2(aq)+2Ag^+(aq)\rightleftharpoons 2AgCl(aq)+Pb^{2+}(aq)

The expression of equilibrium constant of the creation is ;

K=\frac{[AgCl]^2[Pb^{2}]}{[PbCl_2]][Ag^+]^2}

Dividing [1] by [2]

\frac{K_3}{K_4}=\frac{\frac{[Pb^{2+}][Cl^-]^2}{[PbCl_2]}}{\frac{[Ag^+][Cl^-]}{[AgCl]}}

\frac{K_3}{K_4}=\frac{[Pb^{2+}][Cl^-][AgCl]}{[PbCl_2][Ag^+]}

Substituting the value of [Cl^-] from [2] :

\frac{K_3}{K_4}=\frac{[Pb^{2+}][AgCl]}{[PbCl_2][Ag^+]}\times \frac{K_4\times [AgCl]}{[Ag^+]}

\frac{K_3}{K_4}=K_4\times K

K=\frac{K_3}{(K_4)^2}=\frac{1.85\times 10^{-10}}{(1.17\times 10^{-4})^2}

K=0.01351

The equilibrium constant of the given reaction is 0.01351.

3 0
3 years ago
Which makes the phosphorus cycle different from the carbon cycles
azamat
<span>The phosphorus cycle is different compared to the water,carbon, and nitrogen cycle because it can not be found in the gas state. Phosphorus is only found in land, water, and sediment. The phosphorus cycle is a bio-geochemical cycle that describes the movement of phosphorus through the lithosphere, hydrosphere, and biosphere. The other cycles is the process by which it is converted between its various chemical form. Phosphorus has small particles that only sometime go up into the atmosphere and contribute to acid rain but other than that phosphorus stays in and on land, sea, and sediment.(:
Good luck!</span>
3 0
4 years ago
Which tiny, round “factory” puts together protein and is often found in the endoplasmic reticulum?
hodyreva [135]
<span>In the cytoplasm, ribsomal RNA (rRNA), a type of RNA, and protein combine to form a nucleoprotein called a ribosome. The ribosome serves as the site and carries the enzymes necessary for protein synthesis. They are often takes the shape of small round particles attached in the endoplasmic reticulum. The ribosome attaches itself to m-RNA and provides the stabilizing structure to hold all substances in position as the protein is synthesized. Several ribosomes may be attached to a single RNA at any time.  <span> </span></span>
8 0
3 years ago
Read 2 more answers
Other questions:
  • The particles in both gases and liquids select one:
    12·1 answer
  • The distance to nearby stars can be measured by using ?
    14·1 answer
  • studying a molecule and trying to determine if it is DNA or RNA. Which kind of molecule is she studying?
    9·1 answer
  • How does heat always flow or transfer between objects or places
    7·1 answer
  • If an atom has 5 protons, how many electrons does it have?
    12·2 answers
  • If the temperature outside is 297 what is this temperature in degrees celsius
    8·1 answer
  • Visible light has an average wavelength of 550 nm. How much energy would be in this wavelength of light? 5 x 10-19​
    11·1 answer
  • Which of the following describes a chemical property of metal A,reacts with acid B, conducts electricity C,attracted to a magnet
    6·2 answers
  • There are two major isotopes of Lithium. The first has a mass of 6.015 amu and
    14·1 answer
  • Which of the following would be expected to have the lowest first ionization energy?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!