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

검증된 단계별 안내

Identify the reactants: Ammonium iodide \((\text{NH}_4\text{I})\) and sodium hydroxide \((\text{NaOH})\).

Recognize that \(\text{NH}_4^+\) from \(\text{NH}_4\text{I}\) will react with \(\text{OH}^-\) from \(\text{NaOH}\) to form ammonia gas \((\text{NH}_3)\) and water \((\text{H}_2\text{O})\).

Write the unbalanced equation: \(\text{NH}_4\text{I} + \text{NaOH} \rightarrow \text{NH}_3 + \text{H}_2\text{O} + \text{NaI}\).

Balance the equation by ensuring the number of each type of atom is the same on both sides of the equation.

Verify that the equation is balanced by checking that the total charge and the number of each type of atom are equal on both sides.

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주요 개념

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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.

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