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Irina-Kira [14]
3 years ago
7

Which element is classified as a

Chemistry
1 answer:
Yuki888 [10]3 years ago
5 0

Answer: Boron

Explanation:

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The question is below
rodikova [14]
The anode is the electrode where the oxidation occurs.

Cathode is the electrode where the reducction occurs.

Equations:

  Mn(2+) + 2e-  --->  Mn(s)                      Eo = - 1.18 V
2Fe(3+) + 2e-  ----> 2 Fe(2+)                2Eo = + 1.54 V

The electrons flow from the electrode with the lower Eo to the electrode with the higher Eo yielding to a positive voltage.

Eo = 1.54 V - (- 1.18) = 1.54 + 1.18 = 2.72

Answer: 2.72 V

3 0
3 years ago
Can someone help me find the answer?
valentina_108 [34]
C magnetic repulsion, forgive me if I’m wrong
7 0
3 years ago
Action that occurs as two or more objects have an
Naya [18.7K]
The action is interaction
4 0
3 years ago
What is δg for the formation of solid uranium hexafluoride from uranium and fluorine at 25∘c when the partial pressure of f2 is
Sladkaya [172]

The reaction is

U(s)+3F_{2} (g)-->UF_{6} (s)

the Q of reaction will be

Q = \frac{1}{(pF_{2})^{3}}

Q = \frac{1}{(0.054)^{3}  } = 6350.66

ΔG=ΔG^{0}+RTlnQ

Putting values

ΔG = -2068000 + (8.314)(298)lnQ

ΔG = -2068000 + (8.314)(298)ln(6350.66) = -2046305 J /mol = -2046.3 kJ / mol



3 0
3 years ago
Which elements do hydrogen fuel cells combine to produce electricity?<br> (9TH GRADE SCIENCE)
Andrej [43]
<span>it will convert the energy produced by a chemical reaction into usable electric power.</span>
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3 years ago
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