Which salt is formed when lithium hydroxide (LiOH) reacts with hydrobromic acid (HBr)?

• A. LiCl
• B. NaBr
• C. LiBr
• D. KBr

Answer: (C)

Verified step by step guidance

1. Identify the type of reaction occurring between lithium hydroxide (LiOH) and hydrobromic acid (HBr). This is an acid-base neutralization reaction where an acid reacts with a base to form a salt and water.
2. Write the balanced chemical equation for the reaction: \(\mathrm{LiOH + HBr \rightarrow LiBr + H_2O}\).
3. Recognize that lithium hydroxide (LiOH) provides the lithium ion (\(\mathrm{Li^+}\)) and hydroxide ion (\(\mathrm{OH^-}\)), while hydrobromic acid (HBr) provides the hydrogen ion (\(\mathrm{H^+}\)) and bromide ion (\(\mathrm{Br^-}\)).
4. During the reaction, the hydrogen ion (\(\mathrm{H^+}\)) from HBr combines with the hydroxide ion (\(\mathrm{OH^-}\)) from LiOH to form water (\(\mathrm{H_2O}\)), and the lithium ion (\(\mathrm{Li^+}\)) combines with the bromide ion (\(\mathrm{Br^-}\)) to form the salt lithium bromide (\(\mathrm{LiBr}\)).
5. Conclude that the salt formed in this neutralization reaction is lithium bromide (\(\mathrm{LiBr}\)), which corresponds to the correct answer.