Textbook Question
Write the balanced chemical equation for the reaction of aqueous potassium hydroxide with aqueous iron(III) chloride to form solid iron(III) hydroxide and aqueous potassium chloride.
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Ch.3 - Molecules, Compounds & Chemical Equations
Tro4th EditionChemistry: A Molecular ApproachISBN: 9780134112831
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Table of contents
- Ch.1 - Matter, Measurement & Problem Solving136
- Ch.2 - Atoms & Elements112
- Ch.3 - Molecules, Compounds & Chemical Equations159
- Ch.4 - Chemical Quantities & Aqueous Reactions140
- Ch.5 - Gases118
- Ch.6 - Thermochemistry106
- Ch.7 - Quantum-Mechanical Model of the Atom62
- Ch.8 - Periodic Properties of the Elements103
- Ch.9 - Chemical Bonding I: The Lewis Model104
- Ch.10 - Chemical Bonding II: Molecular Shapes & Valence Bond Theory89
- Ch.11 - Liquids, Solids & Intermolecular Forces73
- Ch.12 - Solids and Modern Material59
- Ch.13 - Solutions110
- Ch.14 - Chemical Kinetics140
- Ch.15 - Chemical Equilibrium78
- Ch.16 - Acids and Bases155
- Ch.17 - Aqueous Ionic Equilibrium176
- Ch.18 - Free Energy and Thermodynamics108
- Ch.19 - Electrochemistry118
- Ch.20 - Radioactivity and Nuclear Chemistry82
- Ch.21 - Organic Chemistry150
Chapter 3, Problem 111
Balance each chemical equation. b. Co(NO3)3(aq) + (NH4)2S(aq) → Co2S3(s) + NH4NO3(aq)
Verified step by step guidance1
Identify the number of each type of atom on both sides of the equation.
Start by balancing the metal cation, Co, by ensuring the number of Co atoms is the same on both sides.
Balance the sulfur atoms by adjusting the coefficient of (NH4)2S.
Balance the nitrogen atoms by adjusting the coefficient of NH4NO3.
Finally, balance the hydrogen and oxygen atoms, if necessary, by adjusting the coefficients of the compounds containing these elements.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
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. Coefficients are used to adjust the number of molecules or formula units to achieve balance.
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Balancing Chemical Equations
Types of Chemical Reactions
Understanding the types of chemical reactions, such as double displacement, is crucial for balancing equations. In this case, the reaction between cobalt(III) nitrate and ammonium sulfide is a double displacement reaction, where the cations and anions exchange partners. Recognizing the type of reaction helps predict the products and their states.
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States of Matter in Chemical Reactions
The states of matter (solid, liquid, gas, aqueous) in a chemical equation provide important information about the reactants and products. In the given equation, Co(NO3)3 and (NH4)2S are in aqueous solution, while Co2S3 is a solid precipitate. Understanding these states helps in visualizing the reaction and determining the physical changes that occur.
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Related Practice
Textbook Question
Write the balanced chemical equation for each reaction.
c. Sulfur dioxide gas reacts with oxygen gas to form sulfur trioxide gas.
d. Gaseous ammonia (NH3) reacts with gaseous oxygen to form gaseous nitrogen monoxide and gaseous water.
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Textbook Question
Balance each chemical equation. a. Na2S(aq) + Cu(NO3)2(aq) → NaNO3(aq) + CuS(s) b. N2H4(l) → NH3(g) + N2(g) c. HCl(aq) + O2(g) → H2O(l) + Cl2(g) d. FeS(s) + HCl(aq) → FeCl2(aq) + H2S(g)