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Ch.3 - Chemical Reactions and Reaction Stoichiometry
Brown - Chemistry: The Central Science 14th Edition
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Tutti i libri di testoBrown 14th EditionCh.3 - Chemical Reactions and Reaction StoichiometryProblema 12d
Capitolo 3, Problema 12d

Balance the following equations: (d) Na2CO3(aq) + HCl(aq) → NaCl(aq) + H2O(l) + CO2(g)

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Identify the reactants and products in the chemical equation: \( \text{Na}_2\text{CO}_3 (aq) + \text{HCl} (aq) \rightarrow \text{NaCl} (aq) + \text{H}_2\text{O} (l) + \text{CO}_2 (g) \).
List the number of each type of atom on both sides of the equation to determine which are unbalanced.
Start by balancing the sodium (Na) atoms. There are 2 Na atoms in \( \text{Na}_2\text{CO}_3 \), so you need 2 NaCl on the product side.
Next, balance the chlorine (Cl) atoms. Since you have 2 NaCl, you need 2 HCl on the reactant side to balance the Cl atoms.
Finally, check the balance of hydrogen (H) and oxygen (O) atoms. Ensure that the number of each type of atom is equal on both sides of the equation.

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Balancing Chemical Equations

Balancing chemical equations involves ensuring that the number of atoms for each element is the same on both sides of the equation. This is based on the law of conservation of mass, which states that matter cannot be created or destroyed in a chemical reaction. To balance an equation, coefficients are adjusted in front of the chemical formulas to achieve equal atom counts.
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Balancing Chemical Equations

Types of Chemical Reactions

Understanding the types of chemical reactions, such as acid-base reactions, is crucial for balancing equations. In the given equation, sodium carbonate (Na2CO3) reacts with hydrochloric acid (HCl) to produce sodium chloride (NaCl), water (H2O), and carbon dioxide (CO2). Recognizing the reactants and products helps in determining how to balance the equation effectively.
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Common Types of Alkane Reactions

State Symbols in Chemical Equations

State symbols indicate the physical state of the reactants and products in a chemical equation: (s) for solid, (l) for liquid, (g) for gas, and (aq) for aqueous solutions. In the provided equation, recognizing that Na2CO3 and HCl are in aqueous solution while CO2 is a gas is important for understanding the reaction conditions and the nature of the products formed.
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Balancing Chemical Equations
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