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Tcecarenko [31]
3 years ago
12

Which of these is an example of a chemical reaction that occurs at a very slow rate

Chemistry
2 answers:
mojhsa [17]3 years ago
5 0

Answer is: D. iron rusting.

Balanced chemical reaction of forming rust: 4Fe + 3O₂ → 2Fe₂O₃.

The mass of the rusted nail, for example, equals the mass of iron and the oxygen from the air it reacted with to form the rust.

Alcohol burning and an explosion are exothermic (energy is released) and very fast reactions.

Black_prince [1.1K]3 years ago
5 0

Iron rusting is the answer because it take a longer time for iron to rust than it take for the other things.

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anygoal [31]

<em>K</em> = 2.4 × 10^(-72)

<em>Step 1</em>. Determine the <em>value of n </em>

Zn^(2+) + 2e^(-) → Zn

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∴ <em>n</em> = 2

<em>Step 2</em>. Calculate <em>K</em>

log<em>K</em> = <em>nE</em>°/0.0592 V = [2 × (-2.12 V)]/0.0592 V = -71.62

<em>K</em> = 10^(-71.62) = 2.4 × 10^(-72)

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3 years ago
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Mass of CO₂ produced : 58.67 g

<h3>Further explanation</h3>

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.

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mol of CO₂ based on mol of O₂ as a limiting reactant(CS₂ as an excess reactant)

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\tt \dfrac{1}{3}\times 4=\dfrac{4}{3}

mass  CO₂ (MW= 44 g/mol) :

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