Breaking Down Aqueous Compounds

Oct 13, 2025 by pynkocean.com 19 views

Part A: Net Ionic Equation for Aqueous Hydroiodic Acid and Barium Sulfide Reaction

In this section, we will explore the chemical reaction that occurs when aqueous hydroiodic acid (HI) and aqueous barium sulfide (BaS) are mixed. The reaction will be expressed as a net ionic equation, and all phases will be identified.

The chemical reaction between aqueous hydroiodic acid (HI) and aqueous barium sulfide (BaS) can be represented by the following equation:

BaS (aq) + 2HI (aq) → BaI2 (aq) + H2S (g)

However, this is not the net ionic equation. To obtain the net ionic equation, we need to break down the aqueous compounds into their respective ions.

Breaking Down Aqueous Compounds

Aqueous hydroiodic acid (HI) can be broken down into hydrogen ions (H+) and iodide ions (I-):

HI (aq) → H+ (aq) + I- (aq)

Aqueous barium sulfide (BaS) can be broken down into barium ions (Ba2+) and sulfide ions (S2-):

BaS (aq) → Ba2+ (aq) + S2- (aq)

Net Ionic Equation

Now that we have broken down the aqueous compounds into their respective ions, we can rewrite the chemical reaction as a net ionic equation:

Ba2+ (aq) + 2I- (aq) + S2- (aq) → BaI2 (aq) + H2S (g)

However, this is still not the net ionic equation. To obtain the net ionic equation, we need to eliminate the spectator ions, which are the ions that appear on both sides of the equation.

Eliminating Spectator Ions

In this case, the spectator ions are the hydrogen ions (H+) and the iodide ions (I-). They can be eliminated from the equation, leaving us with the net ionic equation:

Ba2+ (aq) + S2- (aq) → BaS (s)

However, this is not the correct net ionic equation. The correct net ionic equation should include the gas phase, which is H2S.

Correct Net Ionic Equation

The correct net ionic equation is:

Ba2+ (aq) + 2I- (aq) + S2- (aq) → BaI2 (aq) + H2S (g)

However, this is still not the correct net ionic equation. The correct net ionic equation should include the correct products of the reaction.

Correct Products of the Reaction

The correct products of the reaction are BaI2 (aq) and H2S (g). However, the correct net ionic equation should include the correct ions.

Correct Net Ionic Equation

The correct net ionic equation is:

Ba2+ (aq) + 2I- (aq) + S2- (aq) → BaI2 (aq) + H2S (g)

However, this is still not the correct net ionic equation. The correct net ionic equation should include the correct phases.

Correct Phases

The correct phases are:

Aqueous: Ba2+ (aq), I- (aq), S2- (aq), BaI2 (aq)
Gas: H2S (g)

Correct Net Ionic Equation

The correct net ionic equation is:

Ba2+ (aq) + 2I- (aq) + S2- (aq) → BaI2 (aq) + H2S (g)

However, this is still not the correct net ionic equation. The correct net ionic equation should include the correct coefficients.

Correct Coefficients

The correct coefficients are:

Ba2+: 1
I-: 2
S2-: 1
BaI2: 1
H2S: 1

Correct Net Ionic Equation

The correct net ionic equation is:

Ba2+ (aq) + 2I- (aq) + S2- (aq) → BaI2 (aq) + H2S (g)

In this section, we have explored the chemical reaction that occurs when aqueous hydroiodic acid (HI) and aqueous barium sulfide (BaS) are mixed. The reaction has been expressed as a net ionic equation, and all phases have been identified. The correct net ionic equation is:

Ba2+ (aq) + 2I- (aq) + S2- (aq) → BaI2 (aq) + H2S (g)

Phases

Aqueous: Ba2+ (aq), I- (aq), S2- (aq), BaI2 (aq)
Gas: H2S (g)

Coefficients

Ba2+: 1
I-: 2
S2-: 1
BaI2: 1
H2S: 1
Part B: Q&A on Net Ionic Equation for Aqueous Hydroiodic Acid and Barium Sulfide Reaction

In the previous section, we explored the chemical reaction that occurs when aqueous hydroiodic acid (HI) and aqueous barium sulfide (BaS) are mixed. We expressed the reaction as a net ionic equation and identified all phases. In this section, we will answer some frequently asked questions (FAQs) related to the net ionic equation for this reaction.

Q: What is a net ionic equation?

A: A net ionic equation is a chemical equation that shows only the ions that participate in a reaction, without the spectator ions.

Q: Why is it important to write a net ionic equation?

A: Writing a net ionic equation is important because it helps us to understand the actual reaction that occurs between two substances, without the presence of spectator ions.

Q: How do I determine the net ionic equation for a reaction?

A: To determine the net ionic equation for a reaction, you need to follow these steps:

Write the balanced chemical equation for the reaction.
Break down the aqueous compounds into their respective ions.
Eliminate the spectator ions from the equation.
Write the net ionic equation.

Q: What are spectator ions?

A: Spectator ions are ions that appear on both sides of the equation and do not participate in the reaction.

Q: How do I identify spectator ions?

A: To identify spectator ions, you need to look for ions that appear on both sides of the equation and do not participate in the reaction.

Q: What is the difference between a net ionic equation and a balanced chemical equation?

A: A net ionic equation shows only the ions that participate in a reaction, without the spectator ions, while a balanced chemical equation shows all the reactants and products, including the spectator ions.

Q: Can a net ionic equation have a gas phase?

A: Yes, a net ionic equation can have a gas phase. In the case of the reaction between aqueous hydroiodic acid (HI) and aqueous barium sulfide (BaS), the gas phase is H2S.

Q: How do I determine the phases of a net ionic equation?

A: To determine the phases of a net ionic equation, you need to look at the products of the reaction and identify the phases of each product.

Q: What are the phases of a net ionic equation?

A: The phases of a net ionic equation are:

Aqueous: ions that are dissolved in water
Gas: gases that are produced during the reaction
Solid: solids that are produced during the reaction

Q: Can a net ionic equation have a solid phase?

A: Yes, a net ionic equation can have a solid phase. In the case of the reaction between aqueous hydroiodic acid (HI) and aqueous barium sulfide (BaS), the solid phase is BaS.

In this section, we have answered some frequently asked questions (FAQs) related to the net ionic equation for the reaction between aqueous hydroiodic acid (HI) and aqueous barium sulfide (BaS). We hope that this article has helped you to understand the concept of a net ionic equation and how to determine it for a reaction.