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Sergeeva-Olga [200]
2 years ago
6

Avoltic cell prepared using aluminium and nickle has the flowing cell notation ​

Chemistry
1 answer:
SpyIntel [72]2 years ago
5 0

Answer:

Al (s) | Al³⁺ (aq) || Ni²⁺ (aq) | Ni (s)

Explanation:

It seems that you meant "A voltic cell".

Here, Al (s) represents the solid anode while Al³⁺ is in aqueous phase, these two forms are separated by a solid line. || is the salt bridge while Ni²⁺ is in aqueous phase and is reduced on the nickel cathode that is Ni (s).

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Morgarella [4.7K]
Carbon is 12 grams per mole
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2 years ago
Explain how the development of the atomic theory is an example of science's self-correcting process of discovery in depth.
Stolb23 [73]

Answer:

En química y física, la teoría atómica es una teoría científica sobre la naturaleza de la materia que sostiene que está compuesta de unidades discretas llamadas átomos. Empezó como concepto filosófico en la Antigua Grecia y logró ampliar aceptación científica a principios del siglo XIX cuando los descubrimientos en el campo de la química demostraron que la materia realmente se comportaba como si estuviese hecha de átomos.

La palabra átomo proviene del adjetivo en griego antiguo átomos, que significa «indivisible». Los químicos del siglo XIX empezaron a utilizar el término en relación con el número creciente de elementos químicos irreducibles.1​ Cerca del cambio al siguiente siglo, a través de varios experimentos con electromagnetismo y radiactividad, los físicos descubrieron que los "átomos indivisibles" eran de hecho un conglomerado de varias partículas subatómicas (principalmente, electrones, protones y neutrones), las que pueden existir separadas unas de otras. De hecho, en ciertos entornos extremos, como las estrellas de neutrones, la presión y la temperatura extremas impiden que los átomos puedan existir en absoluto.

Ya que se descubrió que los átomos podían dividirse, los físicos inventaron el término «partículas elementales» para describir las partes "indivisibles", aunque no indestructibles, de un átomo. El campo de ciencia que estudia las partículas subatómicas es la física de partículas y es en este campo donde los físicos esperan descubrir la auténtica naturaleza fundamental de la materia

5 0
2 years ago
What volume of a 2.5 M NaOH solution is required to prepare 2.0 liters of a 0.75M NaOH? A. 2.5 liters B. 6.7 liters C. 0.60 lite
puteri [66]

Answer:

C. 0.60

Explanation:

Mi x Vi = Mf x Vf

2.5 x Vi = 0.75 x 2.0

2.5 x Vi = 1.5

Vi = 1.5 / 2.5

Vi = 0.6 L

8 0
3 years ago
How much (in M) oxygen (O2) will dissolve in water from air at 20 °C and 0.6 atmpressure and containing 18% (volume) O2?
Aneli [31]

Answer:

Concentration of oxygen (O2) = 2.7 x 10^-6 M

Explanation:

The concept of Henry's law was applied as this shows the relationship between solubility and the pressure in atm, and sometimes it is related to the concentration in molar as it was applied and shown in the attachment.

6 0
3 years ago
What is the freezing point of a 0.743m aqueous solution if KCI? (Report amount to three decimal points)
Aleksandr-060686 [28]
This is a question about the colligative property known as freezing point depression. Freezing point depression (the amount the normal freezing point of the solvent is decreased) can be calculated with this equation:

ΔT = i Kf<span> m
</span>
Where i (the van't Hoff factor) is the degree of dissociation of the solute, Kf is the freezing point depression constant, and m is the molality of the solution.

Here i = 2 (KCl dissociates into 2 ions, K+ and Cl-), Kf = 1.86 C/m (for water), and m = 0.743m).

ΔT = 2 x 1.86 C/m x 0.743m = <span>2.764C
</span>
That means the freezing point of the solution is 2.764C less than the pure solvent (water), making it 0C - 2.764C = -2.764C.
5 0
3 years ago
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