Complete and balance each gas-evolution equation. b. NH₄I(aq) + NaOH(aq) →

Key Concepts

Gas-Evolution Reactions

Gas-evolution reactions are chemical reactions that produce a gas as one of the products. These reactions often involve the combination of an acid and a base, leading to the formation of a gas, water, and a salt. Understanding the types of gases produced, such as carbon dioxide or ammonia, is crucial for predicting the outcome of the reaction.

Balancing Chemical Equations

Balancing chemical equations is the process of ensuring that the number of atoms for each element is the same on both sides of the equation. This is based on the law of conservation of mass, which states that matter cannot be created or destroyed in a chemical reaction. Proper balancing is essential for accurately representing the stoichiometry of the reaction.

Acid-Base Neutralization

Acid-base neutralization is a chemical reaction where an acid reacts with a base to produce water and a salt. In the context of the given reaction, ammonium iodide (NH4I) acts as a weak acid, while sodium hydroxide (NaOH) is a strong base. The products of this reaction include water and sodium iodide (NaI), along with the potential release of ammonia gas.