consider this reaction: koh + hbr → kbr + h₂o\nwhich is the base in this reaction?\n○ koh\n○ hbr\n○ kbr\n○…

consider this reaction: koh + hbr → kbr + h₂o\nwhich is the base in this reaction?\n○ koh\n○ hbr\n○ kbr\n○ h₂o\ndone

consider this reaction: koh + hbr → kbr + h₂o\nwhich is the base in this reaction?\n○ koh\n○ hbr\n○ kbr\n○ h₂o\ndone

Answer

Brief Explanations:

In acid - base reactions (specifically neutralization reactions here), a base is a substance that donates hydroxide ions ($\ce{OH^-}$) or accepts protons ($\ce{H^+}$). In the reaction $\ce{KOH + HBr -> KBr + H_2O}$, $\ce{KOH}$ (potassium hydroxide) dissociates to give $\ce{K^+}$ and $\ce{OH^-}$ ions. $\ce{HBr}$ is an acid as it donates $\ce{H^+}$ ions. $\ce{KBr}$ is a salt (the product of the neutralization) and $\ce{H_2O}$ is also a product. So, based on the definition of a base in this type of reaction, $\ce{KOH}$ acts as the base.

Answer:

A. KOH