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nevsk [136]
3 years ago
12

Which formula correctly represents the product of an addition reaction between ethene and chlorine?

Chemistry
1 answer:
Serjik [45]3 years ago
4 0
The formula that correctly represents the product of an addition reaction between ethene and chlorine is  C2H4Cl2
Addition reaction occurs when an atom is added to a compound that has a double bond or triple bond (unsaturated hydrocarbons). Unsaturated compounds are associated with addition reactions. For example Ethene is an example of unsaturated hydrocarbon; when reacted with chlorine gas , chlorine atoms are added to each carbon atoms. 
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A solution is prepared by dissolving 32. 0 g of NiSO4 in water. What current would be needed to deposit all of the nickel in 5.
strojnjashka [21]

The current needed to deposit all of the nickel in 5 hours is 2.219 A

<h3>What is Faraday's Law of electrolysis?</h3>

According to the first law of Faraday, the amount of substance liberated at an electrode is directly proportional to the quantity of charge passed through an electrolyte.

m = zq , where z = electrochemical equivalent

An electrochemical equivalent is the mass of the substance liberated at an electrode when 1 Columb of charge is passed through the electrolyte.

For the nickel,

Ni^{2+} (aq) + 2e^- \rightarrow Ni (s)

z = 2

The molar mass of NiS0₄ = 154.75 g

154.75 g of Ni needs 2 x 96485 C

32 g of Ni needs \frac{2\times 96485\times 32}{154.75} \\

32 g of Ni needs 39944.79 C

We know,

q = It

Where q = charge

I = current and t = time in seconds

q = 39944.79 C and t = 5 x 60 x 60 = 18000 s

I = \frac{q}{t} \\     = \frac{39944.79}{18000}

= 2.219 A

Hence, the current needed to deposit all the nickel is 2.219 A in 5 hours

Learn more about Faraday's law of electrolysis:

brainly.com/question/14548624

#SPJ4

7 0
2 years ago
The bond energy between carbon and oxygen is 358 for a single bond (C–O) and 745 for a double bond (C=O). Why is the bond energy
erastovalidia [21]

This problem is providing the bond energy for the bonds C-O and C=O which are 358 and 745 respectively, so that a feasible explanation to this behavior is required. At the end, one concludes the correct answer is C. "additional electrons repel each other, increasing the distance between atoms, and increasing bond energy" according to the following:

<h3>Bond energy:</h3><h3 />

In chemistry, we study the bond energy as the energy required to break the bond, binding two elements. In such a way, we can evidence that the more bonds between the atoms, the higher the bond energy such as in the case of C-O and C=O.

In such a way, since bonds are formed between valence electrons, we see that the more of these an atom has available for bonding, the farther away they will be, as they are repelled; thus, causing more distance between atoms and making the bond to be longer.

Hence, the greater the distance between two atoms in a bond, the higher the bond energy; that's why the answer to this question is C. Additional electrons repel each other, increasing the distance between atoms, and increasing bond energy.

Learn more about bond lengths: brainly.com/question/13683866

8 0
2 years ago
scientists often work on projects for a long time and fail to see sources of error in their research. Which process allows an ou
Natalka [10]

Answer is: Peer review.

Peer review is used to maintain quality standards, point to sources of error and improve performance.

Work on project is evaluated by people with similar competences (qualified members of a profession within the relevant field) as the scientist who are performing the work.

It is common in the field of health care.

4 0
3 years ago
What type of change goes on inside when a glow stick is activated?
Paul [167]

Answer:

Chemical

Explanation:

8 0
3 years ago
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An aluminum pan and a copper pan have the same mass and are heated to the same temperature. Which will feel hotter?
Aliun [14]

Answer:

<u>The copper pan! </u>

Explanation:

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<u><em>Good luck on your assignment!</em></u>

6 0
3 years ago
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