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Which of the following reactions is an example of a basic anhydride reacting with water?

1) CO₂ + H₂O → H₂CO₃
2) MgO + H₂O → Mg(OH)₂
3) SO₃ + H₂O → H₂SO₄
4) NO₂ + H₂O → HNO₃

User Pbacterio
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Final answer:

The reaction MgO + H₂O → Mg(OH)₂ is an example of a basic anhydride, magnesium oxide, reacting with water to form a base, magnesium hydroxide.

Step-by-step explanation:

The reaction that is an example of a basic anhydride reacting with water is MgO + H₂O → Mg(OH)₂. Basic anhydrides are usually metal oxides that react with water to form bases. In the given reaction, magnesium oxide (MgO), which is a metal oxide, reacts with water (H₂O) to yield magnesium hydroxide (Mg(OH)₂), a base. This aligns with the trend that oxides of more electropositive elements, like magnesium, tend to form basic solutions when hydrated.

The reaction that is an example of a basic anhydride reacting with water is MgO + H₂O → Mg(OH)₂. Basic anhydrides are metal oxides that react with water to form bases. In this reaction, magnesium oxide (MgO) reacts with water (H₂O) to produce magnesium hydroxide (Mg(OH)₂), which is a base.

User Kalinin
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