Exercises: Oxidation-reduction in daily life
An iron fence exposed to rain becomes covered with rust over time. Explain which species is oxidized and which one acts as the oxidizing agent, and mention two everyday…
An iron fence exposed to rain becomes covered with rust over time. Explain which species is oxidized and which one acts as the oxidizing agent, and mention two everyday ways to protect iron from oxidation.
On the stove of a Mexican kitchen, LP gas (mainly butane, C₄H₁₀) burns with oxygen from the air, producing carbon dioxide and water. Identify which substance is oxidized…
On the stove of a Mexican kitchen, LP gas (mainly butane, C₄H₁₀) burns with oxygen from the air, producing carbon dioxide and water. Identify which substance is oxidized (the fuel) and which one is reduced (the oxidizer), and explain why combustion is a redox reaction even though we cannot see electrons moving.
The chlorine used to bleach clothes and disinfect water acts as an oxidizing agent, while vitamin C from guava or orange is advertised as an "antioxidant". Explain, in…
The chlorine used to bleach clothes and disinfect water acts as an oxidizing agent, while vitamin C from guava or orange is advertised as an "antioxidant". Explain, in terms of electron transfer, what an oxidizer does and what an antioxidant does, and why adding lime juice (rich in vitamin C) to a cut fruit slows down its browning in the air.