Domanda del libro di testo
When iron rusts, solid iron reacts with gaseous oxygen to form solid iron(III) oxide. Write the balanced chemical equation for this reaction.
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Ch.4 - Chemical Reactions and Chemical Quantities
Tro6th EditionChemistry: A Molecular ApproachISBN: 9780137832217
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TOC.tableOfContents
- Ch.1 - Matter, Measurement & Problem Solving118
- Ch.2 - Atoms & Elements106
- Ch.3 - Molecules and Compounds131
- Ch.4 - Chemical Reactions and Chemical Quantities56
- Ch.5 - Introduction to Solutions and Aqueous Solutions82
- Ch.6 - Gases114
- Ch.7 - Thermochemistry96
- Ch.8 - The Quantum-Mechanical Model of the Atom60
- Ch.9 - Periodic Properties of the Elements90
- Ch.10 - Chemical Bonding I: The Lewis Model89
- Ch.11 - Chemical Bonding II: Molecular Shapes, VSEPR & MO Theory85
- Ch.12 - Liquids, Solids & Intermolecular Forces51
- Ch.13 - Solids & Modern Materials47
- Ch.14 - Solutions90
- Ch.15 - Chemical Kinetics115
- Ch.16 - Chemical Equilibrium68
- Ch.17 - Acids and Bases136
- Ch.18 - Aqueous Ionic Equilibrium153
- Ch.19 - Free Energy & Thermodynamics93
- Ch.20 - Electrochemistry106
- Ch.21 - Radioactivity & Nuclear Chemistry74
- Ch.22 - Organic Chemistry140
Tro6th EditionChemistry: A Molecular ApproachISBN: 9780137832217Non è quello che usi tu?Cambia libro di testo
Capitolo 4, Problema 21a
Write the balanced chemical equation for each reaction. a. Solid lead(II) sulfide reacts with aqueous hydrobromic acid to form solid lead(II) bromide and dihydrogen monosulfide gas.
Guida verificata passo dopo passo1
Identify the reactants and products in the chemical reaction: Lead(II) sulfide (PbS), hydrobromic acid (HBr), lead(II) bromide (PbBr2), and dihydrogen monosulfide (H2S).
Write the unbalanced chemical equation using the chemical formulas: PbS (s) + HBr (aq) -> PbBr2 (s) + H2S (g).
Balance the equation by adjusting coefficients to ensure the same number of each type of atom on both sides of the equation.
Start by balancing the lead (Pb) atoms: 1 Pb on both sides, so no change needed.
Balance the bromine (Br) and hydrogen (H) atoms by adjusting the coefficient of HBr to ensure the same number of Br and H atoms on both sides.
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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 the reactant and product sides. This is based on the law of conservation of mass, which states that matter cannot be created or destroyed in a chemical reaction. Each side of the equation must have equal numbers of each type of atom, which often requires adjusting coefficients in front of the chemical formulas.
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Percorso guidato
01:32
Balancing Chemical Equations
Types of Chemical Reactions
Chemical reactions can be classified into several types, including synthesis, decomposition, single replacement, and double replacement reactions. The reaction described in the question is a double replacement reaction, where the cations and anions of two different compounds exchange places to form two new compounds. Understanding the type of reaction helps predict the products formed and the overall process.
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02:25Common Types of Alkane Reactions
State Symbols in Chemical Equations
State symbols indicate the physical state of the reactants and products in a chemical equation. Common symbols include (s) for solid, (l) for liquid, (g) for gas, and (aq) for aqueous solutions. These symbols provide important information about the conditions of the reaction and help in understanding the nature of the substances involved, which is crucial for accurately writing balanced equations.
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01:32Balancing Chemical Equations
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