Question

45. Perchloric acid (HCIO) reacts with aqueous potassium carbonate, forming carbon dioxide gas and water.​

Answer 1

The question involves the chemical reaction of perchloric acid with potassium carbonate, producing carbon dioxide and water, a typical double displacement reaction in inorganic chemistry.

The student is asking about a chemical reaction between perchloric acid (HCIO) and aqueous potassium carbonate, which produces carbon dioxide gas and water. However, a clarification is needed, as perchloric acid is actually HClO4, not HCIO. Nevertheless, if we consider the reaction of perchloric acid with potassium carbonate,

it would be a double displacement reaction, leading to the formation of potassium perchlorate and carbon dioxide gas, which escapes as a gas, and water. The provided exercises and figures relate to reactions involving acids, bases, and carbonates to produce various salts, carbon dioxide, and water, which is a common type of chemical reaction in inorganic chemistry.

Answer 2

2 HClO4 + K2CO3 → CO2 + 2 KClO4 + H2O

Step-by-step explanation:

The balanced chemical equation for the reaction between perchloric acid (HClO4) and aqueous potassium carbonate (K2CO3) can be written as follows:

2 HClO4 + K2CO3 → CO2 + 2 KClO4 + H2O

In this reaction, two molecules of perchloric acid react with one molecule of aqueous potassium carbonate to produce one molecule of carbon dioxide gas, two molecules of potassium perchlorate, and one molecule of water.

Note that this reaction is a double displacement reaction, also known as a metathesis reaction, where the cations and anions of two different compounds exchange places, forming two new compounds. In this case, the hydrogen cation (H+) and the potassium cation (K+) exchange places, while the perchlorate anion (ClO4-) and the carbonate anion (CO3^2-) exchange places.