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3 years ago

Which term refers to an electrochemical cell that produces an electric current?

1 answer:

8 0

Correct answer: Galvanic cell

Reason:
Following are the differences between Galvanic cell and electrolytic cell:
1. Galvanic cell converts chemical energy into electrical energy , on other hand electrolytic cell converts electrical energy into chemical energy.
2. In galvanic cell, redox reaction is spontaneous and is responsible for the production of electrical energy. in electrolytic cell, the redox reaction is not spontaneous and electrical energy has to be supplied to initiate the reaction.

Thus, galvanic cell refers to an electrochemical cell that produces an electric current

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What is the maximum mass, in kilograms, of (NH4)2U2O7 that can be formed from the reaction of 100 kg of water and 100 kg of ammo

V125BC [204]

Mass of (NH₄)₂U₂O₇ : 410.05 kg

<h3>Further explanation</h3>

Reaction

2UO₂SO₄ + 6NH₃ + 3H₂O → (NH₄)₂U₂O₇ + 2(NH₄)₂SO₄

MW UO₂SO₄ : 366.091

MW (NH₄)₂U₂O₇ : 624.131

MW H₂O : 18.0153

MW NH₃ : 17.0306

mol of 100 kg water :

$\tt \dfrac{100}{18.0153}=5.55$

mol of 100 kg ammonia :

$\tt \dfrac{100}{17.036}=5.87$

mol of UO₂SO₄ :

$\tt \dfrac{481}{366.091}=1.314$

Limiting reactants : smallest mol ratio(mol : coefficient)

$\tt \dfrac{5.55}{3}\div \dfrac{5.87}{6}\div \dfrac{1.314}{2}=1.85\div 0.98\div 0.657$

UO₂SO₄ ⇒ Limiting reactants

mol (NH₄)₂U₂O₇ : mol UO₂SO₄

$\tt \dfrac{1}{2}\times 1.314=0.657$

mass (NH₄)₂U₂O₇

$\tt 0.657\times 624.131=410.05$

5 0

2 years ago

7.In which state of matter molecules have more energy to vibrate.

viva [34]

Answer:

Solid, liquid or gas. So there is movement no matter the state. The key variable is density. The higher the density the less movement. In solids the motion can be so small it's very hard to measure. Gas on the other hand is easy the motion being large. Bear in mind temperature plays a big role. Higher temps bring faster motion. Finally the pressure of the gas brings about less motion the higher it is as the molecules are closer together & can't move as much.

Explanation:

8 0

2 years ago

A cell using protein-mediated facilitated diffusion is treated with a toxin that prevents conformation change in the membrane pr

seraphim [82]

Answer:

The most likely outcome is that carrier protein dysfunction will increase the gradient which will lead to disruption of cellular metabolism.

3 0

2 years ago

So guess what I did!!

Lapatulllka [165]

Answer:

what

Explanation:

what did u do

7 0

2 years ago

1. A solution is always a mixture (true or false)

lakkis [162]

Answer:

yes solution is always a mixture but not all mixtures are solution

Explanation:

A solution.is a homogeneous mixture of substance that have uniform composition throughout

And a mixture hVe twoo or more substances that are not chemically.combine

4 0

3 years ago