Domanda del libro di testo
Balance the following equations: (c) Ba3N2(s) + H2O(aq) → Ba(OH)2(aq) + NH3(g)
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Ch.3 - Chemical Reactions and Reaction Stoichiometry
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232
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TOC.tableOfContents
- Ch.1 - Introduction: Matter, Energy, and Measurement177
- Ch.2 - Atoms, Molecules, and Ions231
- Ch.3 - Chemical Reactions and Reaction Stoichiometry216
- Ch.4 - Reactions in Aqueous Solution189
- Ch.5 - Thermochemistry175
- Ch.6 - Electronic Structure of Atoms168
- Ch.7 - Periodic Properties of the Elements150
- Ch.8 - Basic Concepts of Chemical Bonding177
- Ch.9 - Molecular Geometry and Bonding Theories200
- Ch.10 - Gases179
- Ch.11 - Liquids and Intermolecular Forces113
- Ch.12 - Solids and Modern Materials154
- Ch.13 - Properties of Solutions157
- Ch.14 - Chemical Kinetics199
- Ch.15 - Chemical Equilibrium128
- Ch.16 - Acid-Base Equilibria164
- Ch.17 - Additional Aspects of Aqueous Equilibria163
- Ch.18 - Chemistry of the Environment105
- Ch.19 - Chemical Thermodynamics164
- Ch.20 - Electrochemistry171
- Ch.21 - Nuclear Chemistry122
- Ch.22 - Chemistry of the Nonmetals82
- Ch.23 - Transition Metals and Coordination Chemistry79
- Ch.24 - The Chemistry of Life: Organic and Biological Chemistry16
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232Non è quello che usi tu?Cambia libro di testo
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Brown 14th EditionCh.3 - Chemical Reactions and Reaction StoichiometryProblema 14a,b
Brown 14th EditionCh.3 - Chemical Reactions and Reaction StoichiometryProblema 14a,bCapitolo 3, Problema 14a,b
Balance the following equations: (a) CF4(l) + Br2(g) → CBr4(l) + F2(g) (b) Cu(s) + HNO3(aq) → Cu(NO3)2(aq) + NO2(g) + H2O(l)
Guida verificata passo dopo passo1
Step 1: Identify the reactants and the products in the chemical equation. The reactants are Cu(s) and HNO3(aq), and the products are Cu(NO3)2(aq), NO2(g), and H2O(l).
Step 2: Balance the equation for the atoms that appear in only one reactant and one product first. In this case, start with copper (Cu). There is one Cu atom on the reactant side and one Cu atom on the product side, so Cu is already balanced.
Step 3: Next, balance the nitrogen (N) atoms. There is one N atom in HNO3 on the reactant side and there are 2 N atoms on the product side (one in Cu(NO3)2 and one in NO2). Therefore, you need to multiply HNO3 by 2 on the reactant side.
Step 4: Now, balance the hydrogen (H) and oxygen (O) atoms. There are 2 H atoms in 2HNO3 on the reactant side and there are 2 H atoms in H2O on the product side, so H is balanced. There are 6 O atoms in 2HNO3 on the reactant side and there are 6 O atoms on the product side (4 in Cu(NO3)2, one in NO2, and one in H2O), so O is also balanced.
Step 5: Check your work. The balanced equation should have the same number of each type of atom on the reactant side as on the product side. In this case, the balanced equation is Cu(s) + 2HNO3(aq) → Cu(NO3)2(aq) + NO2(g) + H2O(l).
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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. Coefficients are adjusted in front of compounds to achieve balance, while subscripts indicate the number of atoms in a molecule.
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01:32
Balancing Chemical Equations
Oxidation-Reduction Reactions
Oxidation-reduction (redox) reactions involve the transfer of electrons between substances, leading to changes in oxidation states. In these reactions, one species is oxidized (loses electrons) while another is reduced (gains electrons). Identifying the oxidation states of elements in the reactants and products is crucial for balancing redox equations.
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01:53Oxidation and Reduction Reactions
State Symbols in Chemical Reactions
State symbols indicate the physical state of reactants and products in a chemical equation. Common symbols include (s) for solid, (l) for liquid, (g) for gas, and (aq) for aqueous solutions. Understanding these symbols helps in visualizing the reaction conditions and is essential for accurately balancing equations, especially when dealing with solutions and gases.
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03:17Lewis Dot Symbols
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