Ch.22 - Chemistry of the Nonmetals
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232
Non è quello che usi tu?Cambia libro di testoScegli un libro di testo diverso
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
Capitolo 22, Problema 65
Complete the exercises below. Complete and balance the following equations: e. Ca(CN)₂ (s) + HBr (aq) → ?
Guida verificata passo dopo passo1
Identify the reactants and products: The reactants are calcium cyanide, Ca(CN)_2, and hydrobromic acid, HBr. The products will be calcium bromide, CaBr_2, and hydrogen cyanide, HCN.
Write the unbalanced chemical equation: Ca(CN)_2 (s) + HBr (aq) → CaBr_2 (aq) + HCN (g).
Balance the equation by adjusting coefficients: Start by balancing the calcium (Ca) atoms. There is 1 Ca atom on both sides, so they are balanced.
Balance the cyanide (CN) groups: There are 2 CN groups in Ca(CN)_2, so you need 2 HCN molecules on the product side. Adjust the equation to: Ca(CN)_2 (s) + HBr (aq) → CaBr_2 (aq) + 2 HCN (g).
Balance the bromine (Br) atoms: There are 2 Br atoms in CaBr_2, so you need 2 HBr molecules on the reactant side. The balanced equation is: Ca(CN)_2 (s) + 2 HBr (aq) → CaBr_2 (aq) + 2 HCN (g).
Concetti chiave
Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.
Balancing Chemical Equations
Balancing chemical equations is essential to ensure that the law of conservation of mass is upheld, meaning the number of atoms of each element must be the same on both sides of the equation. This involves adjusting coefficients in front of compounds to achieve balance, reflecting the stoichiometry of the reaction.
Video consigliato:
Percorso guidato
01:32
Balancing Chemical Equations
Types of Chemical Reactions
Understanding the types of chemical reactions, such as double displacement reactions, is crucial for predicting the products of a reaction. In this case, calcium cyanide (Ca(CN)₂) reacts with hydrobromic acid (HBr), leading to the formation of new compounds through the exchange of ions.
Video consigliato:
Percorso guidato
02:25Common Types of Alkane Reactions
Solubility Rules
Solubility rules help determine whether a compound will dissolve in water or precipitate out of solution. In this reaction, knowing that calcium bromide (CaBr₂) is soluble while calcium cyanide may form a precipitate can guide the prediction of the products and the overall reaction behavior.
Video consigliato:
Percorso guidato
00:28Solubility Rules
Pratica correlata