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cluponka [151]
3 years ago
11

A) What is an ELECTRIC CELL? DEL

Chemistry
2 answers:
Svetlanka [38]3 years ago
6 0

Answer:Una célula eléctrica es un dispositivo simple capaz de suministrar una corriente eléctrica. Uno o más células eléctricas que trabajan en conjunto para entregar una corriente constituyen una batería. La reacción química de una célula eléctrica se clasifica como "de oxidación-reducción". Los electrones se transfieren, la oxidación de una especie química a través de la eliminación de electrones, mientras que la reducción de otra mediante la adición de electrones. La reacción en una celda eléctrica puede ser a veces, obviamente, química, como para la batería de cobre y zinc; en otros casos, tales como la célula solar, puede ser menos obvio.

Células eléctricos pueden encontrar aplicación inversa, como en el proceso de galvanoplastia, lo que se aplica un voltaje externo que transfiere electrones en la dirección inversa, lo que resulta en la deposición de metal sobre los sustratos. Entre los yacimientos más comunes son el níquel, soldadura, cromo, cobre, plata y oro. Curiosamente, las células solares pueden tener su acción invierte. En lugar de luz que incide en sus superficies para producir electricidad, la corriente puede ser introducido que los resultados en la emisión de luz, aunque a una frecuencia diferente, a saber, el infrarrojo. Este es el principio del diodo emisor de luz

Explanation:ese es broo

leonid [27]3 years ago
4 0

Answer:

an electric cell is a device that is used to generate electricity, or one that is used to make chemical reactions possible by applying electricity.

Explanation:

Hope this helps

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Buck's Turf Care Company mowed 233 lawns over a 11 week period. What is the average weekly rate of mowing lawns?
masya89 [10]

Answer: 21 lawns per week

Explanation:

The average weekly rate refers to how many lawns were mowed per week given that 233 were done in 11 weeks.

Rate will be given by;

= Lawns mowed / Weeks taken

= 233 / 11

= 21 lawns per week

6 0
3 years ago
What is the volume of an oxygen tank if it contains 12 moles of oxygen at 273 K under 75 kPa?
Zina [86]
Given:
n = 12 moles of oxygen
T = 273 K, temperature
p = 75 kPa, pressure

Use the ideal gas law, given by
pV=nRT \\ or \\  V= \frac{nRT}{p}
where
V = volume
R = 8.3145 J/(mol-K), the gas constant

Therefore,
V= \frac{(12\,mol)(8.3145\, \frac{J}{mol-K} )(273\,K)}{75 \times 10^{3} \, Pa}= 0.3632\,m^{3}

Answer: 0.363 m³
    
5 0
4 years ago
Consider sodium oxide, Na2O. Choose the best explanation for the subscript, 2, from the list provided. There are two atoms of ox
Shalnov [3]

There are two atoms of sodium and one atom of oxygen.

7 0
3 years ago
Read 2 more answers
why is whenever one raised to the power of any exponent 1 and why is 0 raised to the power of any exponent 1
IceJOKER [234]
When you use exponents, think of it like this. 1 squared is 1 x 1. 1 cubed is 1 x 1 x 1. And 1 to the power of 4 is 1 x 1 x 1 x 1. And so on. You basically just multiply them by themselves. 0 to the power of any exponent is 1, well that's just a rule. It doesn't make much sense but it's easy to remember and I wouldn't worry about it.
5 0
3 years ago
A mole of a substance has a mass in grams that is equal to the molecular mass. For example, a carbon atom has a mass of 12.01 u.
IRINA_888 [86]

Answer:

M(Fe₂O₃) = 159.70 g/mol

M(CO) = 28.01 g/mol

M(Fe) = 55.85 g/mol

M(CO₂) = 44.01 g/mol

Explanation:

We can calculate the molar mass of a compound by summing the molar masses of the elements that form it.

Fe₂O₃

M(Fe₂O₃) = 2 × M(Fe) + 3 × M(O) = 2 × 55.85 g/mol + 3 × 16.00 g/mol = 159.70 g/mol

CO

M(CO) = 1 × M(C) + 1 × M(O) = 1 × 12.01 g/mol + 1 × 16.00 g/mol = 28.01 g/mol

Fe

M(Fe) = 1 × M(Fe) = 1 × 55.85 g/mol = 55.85 g/mol

CO₂

M(CO₂) = 1 × M(C) + 2 × M(O) = 1 × 12.01 g/mol + 2 × 16.00 g/mol = 44.01 g/mol

3 0
3 years ago
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