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jeka57 [31]
3 years ago
10

Given the redox reaction: Ni + Sn4+ → Ni2+ + Sn2+

Chemistry
2 answers:
Artist 52 [7]3 years ago
5 0
 <span>1. Na 
2. Ni 
3. Na2S 
4. Electrolytic Cell (Galvanic and Voltaic are synonyms, both are electric cells without an external power source. 
5. 3 
6. The first one 
7. Na 
8. Reducing agents are oxidized 
hope this helps you

</span>
Ludmilka [50]3 years ago
5 0

Answer: Ni

Explanation: Oxidation-reduction reaction or redox reaction is defined as the reaction in which oxidation and reduction reactions occur simultaneously.

Oxidation reaction is defined as the reaction in which a substance looses its electrons. The oxidation state of the substance increases.

Ni\rightarrow Ni^{2+}+2e^-

Reduction reaction is defined as the reaction in which a substance gains electrons. The oxidation state of the substance gets reduced.

Sn^{4+}+2e^-\rightarrow Sn^{2+}

The oxidation state of nickel increases from 0 to +2, it is getting oxidized and it undergoes oxidation reaction.

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The bonds of the product store 27 KJ more energy than the bonds of the reactants how is energy conserved during this reaction
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If the bonds of the product store 27 KJ more energy than the bonds of the reactants, It means the surroundings absorb 27 kj of energy from the reaction system Hence, Option (D) is the correct answer

<h3>What is the Exothermic reaction ?</h3>

An exothermic process releases heat, causing the temperature of the immediate surroundings to rise.

The bonds of the product store 27 KJ more energy than the bonds of the reactants, It means that energy has been absorbed by the surrounding as the product formed is more stable due to more stronger bond

This can be inferred from more stored energy with in the bonds and Thus, It is a exothermic reaction.Hence, Option (D) is the correct answer

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