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satela [25.4K]
3 years ago
10

An electrolytic cell Group of answer choices consumes electrical current to drive a nonspontaneous chemical reaction. produces e

lectrical current from electricity. produces electrical current from a nonspontaneous chemical reaction. produces electrical current from a spontaneous chemical reaction. consumes electrical current to drive a spontaneous chemical reaction
Chemistry
1 answer:
Rzqust [24]3 years ago
3 0

Answer:

produces electrical current from electricity. produces electrical current from a nonspontaneous chemical reaction.

Explanation:

An electrolytic cell converts electrical energy into chemical energy. Here, the redox reaction is spontaneous and is responsible for the production of electrical energy. The reaction at the anode is oxidation and that at the cathode is reduction. Here, the anode is positive and the cathode is the negative electrode.

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Calculate the ΔG for the following system. Then state if the system is spontaneous or not spontaneous. ΔH = 147 kJ ΔS = -67.0 J/
lbvjy [14]

Answer:

ΔG for the given system is 28.421 kJ. The system is non spontaneous.

Explanation:

ΔH = 147 kJ =147,000 J= Enthalpy of the system

ΔS = -67.0 J/K = Entropy change

T = 149 °C = 422.15 K = Temperature of the system

((T)°C=273.15 +T K)

ΔG = Gibbs free energy ?

The Gibbs free energy 's expression is given by:

ΔG = ΔH  - T ΔS

  • ΔG > 0 , non spontaneous
  • ΔG < 0, spontaneous

\Delta G^o=147,000 J-422.15 K\times (-67.0)

ΔG = 28,421 J = 28.421 kJ

Since, value of Gibbs free energy is positive this means that reaction is non spontaneous.

5 0
3 years ago
If you wanted to look at a cell wall.Which type of cell wall would you observe?
nirvana33 [79]

If you are trying to observe a cell wall, you should look at a plant cell. There are only two different types of cells, which are plant and animal cells. The plant cell is the only one which contains a cell wall. Animal cells actually only have a <em>cell membrane. </em>

3 0
3 years ago
If the complete conversion of 1.383g of XI2 results in the formation of 0.564g of XCl2,what is the atomic mass of the element X
Marina CMI [18]

Answer:

So X has an atomic mass of 55.05 u, and is probably Mn

Explanation:

<u>Step1: </u>Balance the equation

XI2 +Cl2 →  XCl2 + I2

<u>Step2:</u> find the molar mass of the compounds

<em><u>Compounds : </u></em>

X  ⇒ Molar mass = M

XI2 ⇒ Molar mass = M + 2*126.9 u

XCl2 ⇒Molar mass = M + 2*35.45u

⇒For 1 mole XI2 we have 1 mole Cl2 reacting , as well as 1 mole XCl2 and 1 mole I2 produced.

<u>Step 3:</u> Calculating the atomic mass

(1.383g * XI2) / (M + 2*126.90 u)  = (0.564g * XCl2) / ( M + 2 * 35.45u)

1.383 (M + 2 *35.45 u )= 0.564 (M  + 2*126.90)

1.383M + 98.0547 = 0.564 M + 143.1432

1.383 M - 0.564 M =143.1432 - 98.0547

0.819 M = 45.0885

M = 55.05 u

So X has an atomic mass of 55.05 u ⇒ if we look at the periodic table we can find that the closest element is Manganese (Mn)

MnI2 + Cl2 → MnCl2 + I2

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3 years ago
E. Top soil is fertile reason​
Lady_Fox [76]

Answer:

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Topsoil consists of most weathered mineral and organic material. Biological agents are also responsible for the breakdown of complex organic matter which releases simple nutrients. This process of mineralisation make soil fertile.

Explanation:

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Example of a negative impact of acids in our everyday world​
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The acid clouds fog the important nutrients like leave and needles . this loss of nutrient make it easier for infections , insects , and cold weather to damage trees and forests
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