Write formulas for the acid and indicated solid that could...

Write formulas for the acid and indicated solid that could be used to prepare each of the following salts:
a. $\mathrm{KNO}_3$ (solid is a bicarbonate)
b. $\mathrm{ZnCl}_2$ (solid is a metal)
c. LiBr (solid is an oxide)

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Key Concepts

Acid-Base Reaction with Oxides

This concept pertains to reactions where metal oxides react with acids to form salts and water. Metal oxides are basic in nature, and when they encounter an acid, neutralization occurs. In these reactions, the oxide ion (or the metal oxide) combines with hydrogen ions from the acid to form water, while the remaining anion from the acid pairs with the metal cation to produce the corresponding salt.

Acid-Base Neutralization Involving Bicarbonates

This concept covers reactions between acids and bicarbonate salts. When a bicarbonate reacts with an acid, the hydrogen ion (H?) from the acid replaces the bicarbonate ion’s associated cation, forming a salt along with carbon dioxide and water as by?products. This type of reaction illustrates typical acid–base neutralization and decarboxylation processes, where the gaseous CO? is evolved.

Metal-Acid Reaction

This concept involves reactions in which a reactive metal reacts with an acid. In such reactions, the metal typically displaces hydrogen from the acid, forming a metal salt and releasing hydrogen gas. This kind of single displacement reaction is common for metals that are sufficiently reactive and is governed by the activity series of metals.

Transcript

00:01 Okay, this is a pretty simple problem.

00:02 We have three problems to do.

00:05 And for each one of these problems, we're going to be given a salt, and we have to choose the acid and the base that would produce that salt and write the balanced chemical equation.

00:17 So really not too tough of a problem to do.

00:20 And let us begin.

00:23 See if i've done this yet.

00:25 Do i have to write all the, write the balanced molecular equation for each reaction? okay, easy enough.

00:31 So i'm going to make my arrow over here.

00:36 And the first salt i'm given is potassium per chlorate, which is kcl.

00:43 04.

00:46 Okay.

00:47 So i'm going to have my, i always like to do my acid first.

00:50 So i'm going to put an acid on this side.

00:55 And my base will end with oh.

00:59 They're going to both be aqueous.