Chlorine reacts with oxygen to form Cl2O7. (c) Would you expect Cl2O7 to be more reactive toward H+1aq2 or OH-1aq2?

Name: Chemistry: The Central Science
Author: Brown
ISBN: 9780137542970

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Identify the nature of Cl2O7: Cl2O7, or dichlorine heptoxide, is an acidic oxide because it is formed from the non-metal chlorine.

Understand the behavior of acidic oxides: Acidic oxides react with bases to form salts and water.

Consider the reaction with H+ (aq): Since Cl2O7 is an acidic oxide, it will not react with H+ (aq) because like substances do not react. Acidic oxides and H+ both have acidic properties.

Consider the reaction with OH- (aq): Cl2O7 will react with OH- (aq), which is a base, to form water and a salt (in this case, likely a chloride salt).

Conclude the reactivity: Cl2O7 is expected to be more reactive towards OH- (aq) than H+ (aq) because it can neutralize the base, leading to a chemical reaction.

Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Acid-Base Chemistry

Acid-base chemistry involves the transfer of protons (H+) between species. In aqueous solutions, acids donate protons while bases accept them. Understanding the nature of Cl2O7, which can act as an acid, is crucial for predicting its reactivity with H+ or OH- ions.

Reactivity of Oxides

Chlorine oxides, such as Cl2O7, exhibit unique reactivity patterns due to their molecular structure and oxidation states. Cl2O7 is a powerful oxidizing agent, and its reactivity can be influenced by the presence of acids or bases, making it essential to analyze how it interacts with H+ and OH-.

Lewis Acids and Bases

Lewis acid-base theory expands the definition of acids and bases beyond protons. A Lewis acid accepts an electron pair, while a Lewis base donates one. Cl2O7 can act as a Lewis acid, and understanding this concept helps predict its interactions with H+ (as a Lewis base) and OH- (as a Lewis base) in solution.

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