### Balancing Chemical Equations**Example Problem:**Balance the following reaction:\[ \_\_\_ \, \text{AgNO}_3 (\text{aq}) + \_\_\_ \, \text{CaCl}_2 (\text{aq}) \rightarrow \_\_\_ \, \text{AgCl (s)} + \_\_\_ \, \text{Ca(NO}_3\text{)}_2 (\text{aq}) \]#### Step-by-Step Solution:1. **Write the unbalanced equation:** \[ \text{AgNO}_3 (\text{aq}) + \text{CaCl}_2 (\text{aq}) \rightarrow \text{AgCl (s)} + \text{Ca(NO}_3\text{)}_2 (\text{aq}) \]2. **List the number of atoms of each element in the reactants and products:** - **Reactants:** - Ag: 1 - NO\(_3\): 1 - Ca: 1 - Cl: 2 - **Products:** - Ag: 1 - NO\(_3\): 2 - Ca: 1 - Cl: 13. **Balance the atoms one element at a time, using coefficients:** - Balance the nitrate (NO\(_3\)) group first: - Reactants have 1 NO\(_3\), but products have 2 NO\(_3\). - So, place a coefficient of 2 in front of AgNO\(_3\) in the reactants: \[ 2 \, \text{AgNO}_3 (\text{aq}) + \_\_\_ \, \text{CaCl}_2 (\text{aq}) \rightarrow \_\_\_ \, \text{AgCl (s)} + \text{Ca(NO}_3\text{)}_2 (\text{aq}) \] - Now recount the atoms: - Reactants: - Ag: 2 - NO\(_3\): 2 - Ca: 1 - Cl: 2 - Products: - Ag: 1 - NO\(_3\): 2 - Ca: 1 - Cl

Balancing of reaction is based on law of conservation of atom i.e number of atoms of each element…

Answered: 2. Balance the following reaction:…

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2. Balance the following reaction: _AGNO3(ag)+ CaCl,(ag) - AgCI (s) + _ Ca(NO3)2(ag)

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Concept explainers

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".

Question

### Balancing Chemical Equations

**Example Problem:**

Balance the following reaction:

\[ \_\_\_ \, \text{AgNO}_3 (\text{aq}) + \_\_\_ \, \text{CaCl}_2 (\text{aq}) \rightarrow \_\_\_ \, \text{AgCl (s)} + \_\_\_ \, \text{Ca(NO}_3\text{)}_2 (\text{aq}) \]

#### Step-by-Step Solution:

1. **Write the unbalanced equation:**

\[ \text{AgNO}_3 (\text{aq}) + \text{CaCl}_2 (\text{aq}) \rightarrow \text{AgCl (s)} + \text{Ca(NO}_3\text{)}_2 (\text{aq}) \]

2. **List the number of atoms of each element in the reactants and products:**

- **Reactants:**
- Ag: 1
- NO\(_3\): 1
- Ca: 1
- Cl: 2

- **Products:**
- Ag: 1
- NO\(_3\): 2
- Ca: 1
- Cl: 1

3. **Balance the atoms one element at a time, using coefficients:**

- Balance the nitrate (NO\(_3\)) group first:
- Reactants have 1 NO\(_3\), but products have 2 NO\(_3\).
- So, place a coefficient of 2 in front of AgNO\(_3\) in the reactants:
\[ 2 \, \text{AgNO}_3 (\text{aq}) + \_\_\_ \, \text{CaCl}_2 (\text{aq}) \rightarrow \_\_\_ \, \text{AgCl (s)} + \text{Ca(NO}_3\text{)}_2 (\text{aq}) \]

- Now recount the atoms:
- Reactants:
- Ag: 2
- NO\(_3\): 2
- Ca: 1
- Cl: 2
- Products:
- Ag: 1
- NO\(_3\): 2
- Ca: 1
- Cl

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