Textbook Question
Look at the location of elements A, B, C, and D in the following
periodic table:
(c) Which hydrides react with water to give H2 gas? Write a balanced net ionic equation for each reaction.
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Ch.22 - The Main Group Elements
McMurry8th EditionChemistryISBN: 9781292336145
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Table of contents
- Ch.1 - Chemical Tools: Experimentation & Measurement170
- Ch.2 - Atoms, Molecules & Ions160
- Ch.3 - Mass Relationships in Chemical Reactions169
- Ch.4 - Reactions in Aqueous Solution199
- Ch.5 - Periodicity & Electronic Structure of Atoms102
- Ch.6 - Ionic Compounds: Periodic Trends and Bonding Theory92
- Ch.7 - Covalent Bonding and Electron-Dot Structures61
- Ch.8 - Covalent Compounds: Bonding Theories and Molecular Structure59
- Ch.9 - Thermochemistry: Chemical Energy122
- Ch.10 - Gases: Their Properties & Behavior155
- Ch.11 - Liquids & Phase Changes54
- Ch.12 - Solids and Solid-State Materials73
- Ch.13 - Solutions & Their Properties120
- Ch.14 - Chemical Kinetics98
- Ch.15 - Chemical Equilibrium125
- Ch.16 - Aqueous Equilibria: Acids & Bases110
- Ch.17 - Applications of Aqueous Equilibria147
- Ch.18 - Thermodynamics: Entropy, Free Energy & Equilibrium86
- Ch.19 - Electrochemistry154
- Ch.20 - Nuclear Chemistry96
- Ch.21 - Transition Elements and Coordination Chemistry156
- Ch.22 - The Main Group Elements187
- Ch.23 - Organic and Biological Chemistry51
Chapter 22, Problem 22
The following models represent the structures of binary hydrides
of second-row elements:
(a) Identify the nonhydrogen atom in each case, and write the molecular formula for each hydride.
Verified step by step guidance1
Examine each model and identify the nonhydrogen atom present in the structure.
For each model, note the chemical symbol of the nonhydrogen atom.
Combine the chemical symbol of the nonhydrogen atom with hydrogen (H) to form the molecular formula.
Ensure the correct stoichiometry by determining the number of hydrogen atoms bonded to the nonhydrogen atom.
Write the molecular formula for each hydride, ensuring the correct representation of the nonhydrogen and hydrogen atoms.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Binary Hydrides
Binary hydrides are compounds formed from hydrogen and one other element, typically a nonmetal or metalloid. In the context of second-row elements, these hydrides include compounds like water (H2O) and ammonia (NH3). Understanding the nature of binary hydrides is essential for identifying the nonhydrogen atom and writing the correct molecular formula.
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01:03
Binary Acids
Molecular Formula
A molecular formula represents the number and type of atoms in a molecule. It is expressed using chemical symbols and subscripts, indicating the quantity of each element present. For example, the molecular formula for methane is CH4, indicating one carbon atom and four hydrogen atoms. Accurately determining the molecular formula is crucial for understanding the composition of the hydrides.
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02:08Determining Molecular Formulas
Second-Row Elements
Second-row elements refer to the elements in the second period of the periodic table, which includes lithium (Li) to neon (Ne). These elements exhibit varying properties and can form different types of compounds, including binary hydrides. Recognizing these elements and their common hydride forms is vital for identifying the nonhydrogen atom in the given models.
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02:35Elemental Forms of Elements
Related Practice
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Compare some of the physical properties of H2S, NaH, and PdHx.
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GeCl4 reacts with Cl- to give GeCl62-, but CCl4 does not react with excess Cl-. Explain.
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In what forms is oxygen commonly found in nature?
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Textbook Question
Which of the following oxides will be more soluble in acidic solution? (LO 22.14)
(a) SiO2 (b) NO2
(c) BaO (d) B2O3
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Textbook Question
Describe the structures of the white and red allotropes of phosphorus, and explain why white phosphorus is so reactive.
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