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Chapter 22: Problem 82

Aluminum carbonate is used in some antacids. Write a balanced net ionic equation for the reaction of aluminum carbonate with hydrochloric acid.

Short Answer

Expert verified
Answer: The balanced net ionic equation for the reaction between aluminum carbonate and hydrochloric acid is: 6CO鈧兟测伝(aq) + 6H鈦�(aq) 鈫� 3H鈧侽(l) + 3CO鈧�(g)

Step by step solution

01

Write the chemical formulas for the reactants

The chemical formula for aluminum carbonate is Al鈧�(CO鈧�)鈧�, and the chemical formula for hydrochloric acid is HCl.
02

Predict the products of the reaction

This reaction is an acid-base reaction, and the products will be a salt and water. The cation in the salt comes from the aluminum carbonate (Al鲁鈦�) and the anion from the hydrochloric acid (Cl鈦�). The salt formed is aluminum chloride (AlCl鈧�), and the other product is water (H鈧侽).
03

Write the balanced molecular equation

The balanced molecular equation for this reaction is: Al鈧�(CO鈧�)鈧�(aq) + 6 HCl(aq) 鈫� 2 AlCl鈧�(aq) + 3 H鈧侽(l) + 3 CO鈧�(g)
04

Write the total ionic equation

To write the total ionic equation, we break down the strong electrolytes (the aqueous salts and strong acids) into their constituent ions: 2Al鲁鈦�(aq) + 6CO鈧兟测伝(aq) + 6H鈦�(aq) + 6Cl鈦�(aq) 鈫� 2Al鲁鈦�(aq) + 6Cl鈦�(aq) + 3H鈧侽(l) + 3CO鈧�(g)
05

Identify the spectator ions

Spectator ions are those ions present on both sides of the ionic equation that do not participate in the reaction. In this case, we have: Spectator ions: 2Al鲁鈦�(aq), 6Cl鈦�(aq)
06

Write the balanced net ionic equation

To write the balanced net ionic equation, we remove the spectator ions from the total ionic equation: 6CO鈧兟测伝(aq) + 6H鈦�(aq) 鈫� 3H鈧侽(l) + 3CO鈧�(g) This balanced net ionic equation shows the reaction between the carbonate ions and the hydrogen ions, resulting in the formation of water and carbon dioxide.

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