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SCORPION-xisa [38]
2 years ago
7

a _____ is a new substance formed in a chemical reaction. a. product b. coefficient c. catalyst d. reactant

Chemistry
2 answers:
Svetradugi [14.3K]2 years ago
6 0
A Product is a new substance formed in a chemical reaction
spayn [35]2 years ago
3 0
A. product because its cant can be catalyst and coefficient.

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A cell consists of a gold wire and a saturated calomel electrode (S.C.E.) in a 0.150 M AuNO 3 solution at 25 °C. The gold wire i
almond37 [142]

The half reaction that occurs at the Au electrode is  1.64

<u>Explanation:</u>

Half cell reaction at 'Au' electrode

We have the equation,

Au + (aq) + e-  ---> Au(s)

Given the concenration of AuNO3=0.150 M

[Au +] =0.150 m

From the equation,

Au + (aq) + e-  ---> Au(s)

Standard electric potential= Eo= 1.69 volt

Solving the problem using the Nerst equation

E cell= E0 cell - 2.303 RT/ nF  log Qc

Where,

T = 298 K

n= no of electron lost or gained

F= faraday's constant= 965000/mole

R= universal constant= 8.314 J/ K/ Mole

Substitue the values we get

E cell = 1.69 volt - 0.05 g/n log (1/0.150M)

E cell = 1.69 volt - 0.05 g/1  0.824

E cell= 1.64

The half reaction that occurs at the Au electrode is  1.64

<u />

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3 years ago
What kind of weather does a cold front usually bring?
svlad2 [7]

Answer:

Sunny and windy but mostly windy

7 0
2 years ago
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Which of these is an example of a solution
OleMash [197]
I believe the correct answer from the choices listed above is option B. Sugar stirred in tea <span> is an example of a solution. A solution is a mixture that exhibits homogeneous properties all throughout the mixture. Hope this answers the question. Have a nice day.</span>
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If the unknown substance does not dissolve in water but dissolves in organic solvent then the substance is _____________________
Ket [755]

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is a organic compound because

Explanation:

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What are the names of the structures in the lungs where gas exchange accuse ?
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