Chemistry Chapter 6 Flashcards
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Questions and Answers

What is the ionic charge and name of the compound Li2O?

  • Li+ and O2-; Lithium Oxide (correct)
  • Li2- and O2+; Lithium Oxine
  • Li2+ and O-; Lithium Oxygen
  • Li+ and O-; Lithium Oxide

    • What is the ionic charge and name of the compound CaS?

  • Ca2+ and S2-; Calcium Sulfide (correct)
  • Ca+ and S-; Calcium Sulfide
  • Ca+ and S2-; Calcium Sulfide
  • Ca2+ and S-; Calcium Sulfide

    • What is the ionic charge and name of the compound Mg3N2?

  • Mg3+ and N2-; Magnesium Nitride
  • Mg2+ and N3-; Magnesium Nitride (correct)
  • Mg+ and N3-; Magnesium Nitride
  • Mg2+ and N2-; Magnesium Nitride

    • What is the ionic charge and name of the compound Al2S3?

    <p>Al3+ and S2-; Aluminum Sulfide</p> Signup and view all the answers

    What is the chemical formula for Cesium Oxide?

    <p>Cs2O</p> Signup and view all the answers

    What is the chemical formula for Sodium Selenide?

    <p>Na2Se</p> Signup and view all the answers

    What is the chemical formula for Lithium Sulfide?

    <p>Li2S</p> Signup and view all the answers

    What is the chemical formula for Calcium Iodide?

    <p>CaI2</p> Signup and view all the answers

    Write the chemical formula for Ruthenium (III) Sulfide: __

    <p>Ru2S3</p> Signup and view all the answers

    Write the chemical formula for Scandium Fluoride: __

    <p>ScF3</p> Signup and view all the answers

    Write the chemical formula for Osmium (VIII) Oxide: __

    <p>OsO4</p> Signup and view all the answers

    Write the chemical formula for Manganese (II) Sulfide: __

    <p>MnS</p> Signup and view all the answers

    Write the chemical formula for Thallium (III) Chloride: __

    <p>TlCl3</p> Signup and view all the answers

    Write the chemical formula for Zinc Arsenide: __

    <p>Zn3As2</p> Signup and view all the answers

    For the equation carbon monoxide + oxygen --> carbon dioxide, write the balanced chemical formula: __

    <p>2CO + O2 --&gt; 2CO2</p> Signup and view all the answers

    For the equation cesium + bromine --> cesium bromide, write the balanced chemical formula: __

    <p>2Cs + Br2 --&gt; 2CsBr</p> Signup and view all the answers

    For the equation nitrogen monoxide + oxygen --> nitrogen dioxide, write the balanced chemical formula: __

    <p>2NO + O2 --&gt; 2NO2</p> Signup and view all the answers

    For the equation ammonia + oxygen --> nitrogen monoxide + water, write the balanced chemical formula: __

    <p>4NH3 + 3O2 --&gt; 2NO + 6H2O</p> Signup and view all the answers

    Use electron configuration to describe the formation of AgCl from the atom: __

    <p>Ag+ and Cl-</p> Signup and view all the answers

    Use electron configuration to describe the formation of Li3N from the atom: __

    <p>3Li+ and N3-</p> Signup and view all the answers

    Predict the ground state electron configuration of Ru2+:

    <p>[Kr] 4d7</p> Signup and view all the answers

    Predict the ground state electron configuration of W3+:

    <p>[Xe] 4f14 5d3</p> Signup and view all the answers

    Predict the ground state electron configuration of Pd2+:

    <p>[Kr] 4d8</p> Signup and view all the answers

    Predict the ground state electron configuration of Ti+:

    <p>[Ar] 3d2 4s2</p> Signup and view all the answers

    How many d electrons are there in Fe2+?

    <p>6</p> Signup and view all the answers

    How many d electrons are there in Zn2+?

    <p>10</p> Signup and view all the answers

    How many d electrons are there in Mn2+?

    <p>5</p> Signup and view all the answers

    How many d electrons are there in Ni2+?

    <p>8</p> Signup and view all the answers

    Predict which of the following pairs has the larger relative size: H+ and H.

    <p>H</p> Signup and view all the answers

    Predict which of the following pairs has the larger relative size: S and S2-.

    <p>S2-</p> Signup and view all the answers

    Predict which of the following pairs has the larger relative size: Fe2+ and Fe3+.

    <p>Fe2+</p> Signup and view all the answers

    Predict which of the following pairs has the larger relative size: Ca2+ and Cl-.

    <p>Cl-</p> Signup and view all the answers

    Predict which of the following pairs has the larger relative size: Mn2+ and Cr+.

    <p>Mn2+</p> Signup and view all the answers

    List the following ions in order of increasing radius: Y3+, Br-, Se2-, Rb+, Mo6+: __

    <p>Mo6+ &lt; Y3+ &lt; Rb+ &lt; Se2- &lt; Br-</p> Signup and view all the answers

    Explain why the magnitude of the first electron affinity of a chlorine atom is greater than that of a sulfur atom.

    <p>Chlorine is smaller, so it attracts electrons more effectively.</p> Signup and view all the answers

    Explain why cations are smaller and anions are larger than their neutral parent atoms.

    <p>Cations lose electrons and have more protons, while anions gain electrons.</p> Signup and view all the answers

    List three ions that are isoelectronic with F-: __

    <p>Ne, Na+, Mg2+</p> Signup and view all the answers

    How many unpaired electrons are there in an Fe3+ ion?

    <p>5</p> Signup and view all the answers

    How many unpaired electrons are there in a Cu+ ion?

    <p>0</p> Signup and view all the answers

    Which of the following anions would you predict to be the smallest: phosphide, sulfide, or chloride?

    <p>Chloride</p> Signup and view all the answers

    Study Notes

    Ionic Compounds and Their Formulas

    • Li2O: Composed of lithium ions (Li+) and oxide ions (O2-); named lithium oxide.
    • CaS: Contains calcium ions (Ca2+) and sulfide ions (S2-); known as calcium sulfide.
    • Mg3N2: Consists of magnesium ions (Mg2+) and nitride ions (N3-); referred to as magnesium nitride.
    • Al2S3: Made up of aluminum ions (Al3+) and sulfide ions (S2-); called aluminum sulfide.
    • Cesium oxide: Chemical formula is Cs2O.
    • Sodium selenide: Chemical formula is Na2Se.
    • Lithium sulfide: Chemical formula is Li2S.
    • Calcium iodide: Chemical formula is CaI2.

    Chemical Formulas for Transition Metal Compounds

    • Ruthenium (III) Sulfide: Chemical formula is Ru2S3.
    • Scandium Fluoride: Chemical formula is ScF3.
    • Osmium (VIII) oxide: Chemical formula is OsO4.
    • Manganese (II) sulfide: Chemical formula is MnS.
    • Thallium (III) Chloride: Chemical formula is TlCl3.
    • Zinc Arsenide: Chemical formula is Zn3As2.

    Balancing Chemical Equations

    • Carbon monoxide + Oxygen → Carbon dioxide:
      • Balanced equation: 2CO + O2 → 2CO2.
    • Cesium + Bromine → Cesium bromide:
      • Balanced equation: 2Cs + Br2 → 2CsBr.
    • Nitrogen monoxide + Oxygen → Nitrogen dioxide:
      • Balanced equation: 2NO + O2 → 2NO2.
    • Ammonia + Oxygen → Nitrogen monoxide + Water:
      • Balanced equation: 4NH3 + 3O2 → 2N2 + 6H2O.

    Electron Configuration and Ionic Compounds

    • AgCl: Formed by silver ions (Ag+) and chloride ions (Cl-), with electron transfer from Ag to Cl.
    • Li3N: Formed by lithium ions (Li+) and nitride ions (N3-), involving transfer of electrons from Li to N.

    Ground State Electron Configuration Predictions

    • Ru2+: [Kr] 4d6.
    • W3+: [Xe] 4f14 5d3.
    • Pd2+: [Kr] 4d8.
    • Ti+: [Ar] 3d2.

    d Electron Counts and Predictions

    • Fe2+: Contains 4 d electrons.
    • Zn2+: Contains 10 d electrons.
    • Ni2+: Contains 8 d electrons.

    Relative Sizes of Ions

    • H+ is smaller than H due to loss of an electron.
    • S2- is larger than S due to extra electrons increasing electron-electron repulsion.
    • Fe3+ is smaller than Fe2+ because it has lost more electrons.
    • Ca2+ is smaller than Cl- due to fewer electrons and a higher positive charge.
    • Increasing radius order: Y3+ < Mo6+ < Rb+ < Se2- < Br-.
    • First electron affinity of chlorine is greater than sulfur due to reduced electron radius and increased electron-nucleus attraction.
    • Cations are smaller and anions larger than their neutral counterparts due to differing electron configurations and nuclear charge influence.

    Isoelectronic Ions and Unpaired Electrons

    • Ions isoelectronic with F- include Ne, Na+, and Mg2+.
    • Fe3+ ion has 5 unpaired electrons.
    • Cu+ ion has 1 unpaired electron.
    • Of phosphide, sulfide, and chloride, chloride is predicted to be smallest due to its higher effective nuclear charge with fewer electrons.

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    Test your knowledge on ionic compounds with these flashcards from Chapter 6. You'll determine ionic charges and name various compounds such as lithium oxide, calcium sulfide, and magnesium nitride. Perfect for chemistry students looking to reinforce their understanding of ionic bonding.

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