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Elena-2011 [213]
2 years ago
8

Complete the statement. Ethanol is an elementary substance a compound

Chemistry
1 answer:
Talja [164]2 years ago
6 0

Answer:

a compound is a syllable in the outer world

Explanation:

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A galvanic cell at a temperature of 25.0°C is powered by the following redox reaction:
soldi70 [24.7K]

Answer:

2.01V ( To three significant digits)

Explanation:

First we show the standard reduction potentials of Cu2+(aq)/Cu(s) system and Al3+(aq)/Al(s) system. We can clearly see from the balanced redox reaction equation that aluminium is the anode and was the oxidized specie while copper is the cathode and was the reduced specie. This observation is necessary when substituting values of concentration into the Nernst equation.

The next thing to do is to obtain the standard cell potential as shown in the image attached and subsequently substitute values of concentration and standard cell potential into the Nernst equation as shown. This gives the cell potential under the given conditions.

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3 years ago
The picture below shows the positions of the Earth, Moon, and Sun during an eclipse.
SVETLANKA909090 [29]

Answer:

it is option c liner eclipse

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2 years ago
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When reactants and products are being formed at an equal rate in a chemical reaction, the ____. a. reaction is endergonic b. fre
attashe74 [19]
<h2>The answer is option b "free energy is zero"</h2>

Explanation

  • The reaction that has negative free energy are called exergonic reactions that means the reactants have more free energy than the product formed.
  • The reaction that has positive free energy are called endergonic reactions that means the final state or the products formed have more free energy than the initial state or the reactants.
  • The reaction that has zero free energy occurs when the free energy of both reactants and the products are same hence the rate of formation of products and reactants are equal.
  • Therefore, when reactants and products are being formed at an equal rate the free energy is zero.
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3 years ago
In an experiment, shinning which type of light on a strip of metal would be least likely to produce the photoelectric effect?
user100 [1]

C red light isn't an efficient source of light

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A lab worker receives an average radiation
cricket20 [7]

Answer:

0.0504

Explanation:

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