Question

which type of reaction is the following?
hclo₄(aq) + lioh(aq) → lioh(aq) + h₂o(l)
a) combination
b) decomposition
c) precipitation
d) acid - base neutralization
e) single replacement

Explanation:

• Combination reaction: Two or more substances combine to form a single product. Here, we have two reactants ($\ce{HClO4}$ and $\ce{LiOH}$) but two products ($\ce{LiClO4}$ and $\ce{H2O}$), so it's not a combination reaction.
• Decomposition reaction: A single compound breaks down into two or more simpler substances. Since we start with two reactants, it's not a decomposition reaction.
• Precipitation reaction: Forms an insoluble solid (precipitate). The product $\ce{H2O}$ is a liquid, and there's no indication of a precipitate formation, so it's not a precipitation reaction.
• Acid - base neutralization reaction: An acid ($\ce{HClO4}$, perchloric acid) reacts with a base ($\ce{LiOH}$, lithium hydroxide) to form a salt ($\ce{LiClO4}$) and water ($\ce{H2O}$). This matches the general form of an acid - base neutralization reaction ($\ce{acid + base

ightarrow salt + water}$).

• Single replacement reaction: One element replaces another in a compound. There is no such element - replacement pattern in this reaction.

Answer:

d) acid - base neutralization