Tin reacts with nitric acid according to the following equation. What substance is the reducing agent? Sn(s) + 4HNO3(aq) → SnO2(s) + 4NO2(g) + 2H2O(g)

Answers

Answer 1

Answer:

Answer: Reducing agent in the given reaction is Sn.

Explanation: Reducing agents are defined as the reagents which reduces the other substance and itself gets oxidized.

Oxidation reactions are defined as the reactions in which loss of electrons occur. the oxidation state of the substance is increased in this type of reaction.

For a given chemical reaction:

$4HNO_3(aq.)+Sn(s)\rightarrow SnO_2(s)+4NO_2(g)+2H_2O(g)$

On reactant side:

Oxidation state of Hydrogen = +1

Oxidation state of oxygen = -2

Oxidation state of Nitrogen = +5

Oxidation state of Sn = 0

On product side:

Oxidation state of Hydrogen = +1

Oxidation state of oxygen = -2

Oxidation state of Nitrogen = +4

Oxidation state of Sn = +4

From above, the oxidation state of Sn is increasing. So, this element will undergo oxidation reaction and hence, is considered as a reducing agent.

Answer 2

Answer: The reducing agent will go through oxidation reaction and lose electrons then the valence will increase. So the reducing agent in this reaction is Sn(s).

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Answers

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Answer:effusion

Explanation:

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Answers

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Answers

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Answers

Answer:

It should be used 2 digits to the right of the decimal point to report the result

Explanation:

When adding or subtracting two decimal numbers, the number of digits to the right of the decimal point in the result is equal to the amount with the least number of decimal places.

In this case we have 4 decimal places in 0.0136 g, 2 decimal places in 2.70 × 10-4 g and 2 decimal places in 4.21 × 10-3 g, so, the least number of decimal places is 2 and that should be the number of digits to the right of the decimal point in the result.

Then the result of the sum should be 9.66 × 10-3 g

I got 2.......................

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Answers

Answer:

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Explanation:

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