Chemistry Chapter 7 Flashcards
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Questions and Answers

What is a monatomic ion?

  • An ion that contains oxygen
  • An ion formed from a single atom (correct)
  • An ion formed from multiple atoms
  • A type of binary compound

    • What is a binary compound?

    A chemical compound composed of only two elements.

    What does nomenclature refer to?

    A system of naming.

    Define oxyanion.

    <p>A polyatomic ion composed of an element bonded to one or more oxygen atoms.</p> Signup and view all the answers

    What is salt in chemistry?

    <p>An ionic compound composed of a cation and the anion from an acid.</p> Signup and view all the answers

    What is meant by oxidation number?

    <p>A positive or negative number indicating how many electrons an atom has gained, lost, or shared.</p> Signup and view all the answers

    What are oxidation states?

    <p>Assigned to the atoms composing the compound or ion.</p> Signup and view all the answers

    Define formula mass.

    <p>The sum of the average atomic masses of all the atoms in a molecule, formula unit, or ion.</p> Signup and view all the answers

    What is percentage composition?

    <p>The percentage by mass of each element in a compound.</p> Signup and view all the answers

    What is an empirical formula?

    <p>A formula showing the smallest whole-number mole ratio of the elements in a compound.</p> Signup and view all the answers

    Study Notes

    Monatomic Ion

    • An ion formed from a single atom.
    • Most ions exist as monatomic ions.

    Binary Compound

    • Composed of two elements only.
    • In binary ionic compounds, the positive charge of the cation equals the negative charge of the anion.

    Nomenclature

    • A system for naming in various fields, especially sciences.
    • Essential for professions such as law, where understanding specific nomenclature is crucial.

    Oxyanion

    • A polyatomic ion made of an element (usually nonmetal) and one or more oxygen atoms.
    • Example: Chlorine forms four different oxyanions by combining with oxygen.

    Salt

    • An ionic compound formed from a cation and the anion from an acid.
    • Created by the combination of an acid's anion with a base's cation.

    Oxidation Number

    • Indicates the electrons gained, lost, or shared by an atom to achieve stability.
    • Example: The oxidation number of carbon in a molecule can be +4.

    Oxidation States

    • Assigned to atoms within compounds or ions.
    • Reflects the same concept as oxidation numbers; for instance, carbon can have an oxidation state of +4.

    Formula Mass

    • The total of average atomic masses for all atoms represented in a molecular formula or ion.
    • Used extensively in chemical calculations.

    Percentage Composition

    • Represents the mass percentage of each element within a compound.
    • Useful for determining the contribution of each element to the overall mass of a compound.

    Empirical Formula

    • Indicates the smallest whole-number mole ratio of elements in a compound.
    • Essential for solving chemical formula problems.

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    Description

    Test your understanding of key concepts from Chemistry Chapter 7 with these flashcards. Learn definitions like 'monatomic ion', 'binary compound', and 'nomenclature' to solidify your knowledge of chemical terminology and classifications. Perfect for quick reviews and self-assessment!

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