Chemical Compounds and Hydrocarbons
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Questions and Answers

Which of the following is the general formula for alkenes?

  • $C_nH_{2n-4}$
  • $C_nH_{2n}$ (correct)
  • $C_nH_{2n+2}$
  • $C_nH_{2n-2}$

    • Oxides are defined as binary compounds containing carbon and oxygen.

    False (B)

    What type of ions do acids release when dissolved in water?

    hydrogen ions

    A substance that releases hydroxide ions in aqueous solution is called a(n) ______.

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

    Match the compound type with its definition:

    <p>Acidic oxide = Non-metallic oxide that forms acidic solutions with water Basic oxide = Metallic oxide that forms basic solutions with water Acid = Releases hydrogen ions in water Base = Neutralizes acids to form salt and water</p> Signup and view all the answers

    Which of the following is NOT considered an organic compound?

    <p>Salts (D)</p> Signup and view all the answers

    Neutralization is the reaction of acids with bases to form a new acid and water.

    <p>False (B)</p> Signup and view all the answers

    What do indicators do in solutions?

    <p>change color</p> Signup and view all the answers

    Flashcards

    Organic Compounds

    Chemical compounds that consist of mostly carbon and hydrogen.

    Inorganic Compounds

    Chemical compounds that do not contain carbon, carbon oxides, carbonates, or hydrogen carbonates.

    Hydrocarbons

    Compounds made of carbon and hydrogen.

    Acids

    Compounds that release hydrogen ions (H+) when dissolved in water.

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    Alkalis

    Compounds that release hydroxide ions (OH-) when dissolved in water.

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    Bases

    Compounds that neutralize acids to form salt and water.

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    Indicators

    Substances that change color in acidic or basic solutions.

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    Neutralization

    Reaction of acids with bases to form salt and water.

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    Study Notes

    Chemical Compounds

    • Chemical compounds are broadly divided into organic and inorganic compounds
    • Organic compounds primarily contain carbon and hydrogen, plus nitrogen, oxygen, sulfur, and other elements
    • Hydrocarbons are compounds of carbon and hydrogen
    • Hydrocarbons are classified as alkanes, alkenes, and alkynes

    Hydrocarbons

    • Alkanes (paraffins) have the general formula CnH2n+2
    • Alkenes (olefins) have the general formula CnH2n
    • Alkynes have the general formula CnH2n-2

    Inorganic Compounds

    • Inorganic compounds do not contain carbon (except oxides of carbon, carbonates, and hydrogen carbonates).
    • Inorganic compounds can be classified as oxides, acids, bases, or salts
    • Oxides are binary compounds containing oxygen and an element (metal, non-metal, or metalloid)
    • Oxides are classified as acidic or basic depending on their properties
      • Acidic oxides are non-metallic oxides that react with water to form acidic solutions
      • Basic oxides are metallic oxides that react with water to form basic solutions

    Acids, Bases, and Alkalis

    • Acids are compounds that release hydrogen ions (H+) when dissolved in water
    • Alkalis are substances that release hydroxide ions (OH-) in aqueous solution
    • Bases are compounds that neutralize acids to form salt and water
    • Alkalis are a type of base
    • Indicators are substances that change color to show whether a solution is acidic or basic

    Neutralization

    • Neutralization is the reaction of acids with bases to form salt and water
    • Neutralization is important in daily life (home, health, agriculture)
    • Salts are compounds containing positive ions from bases and negative ions from acids
    • Names of inorganic compounds can be deduced from a set of rules

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    Description

    Explore the fascinating world of chemical compounds in this quiz. Learn about the classification of organic and inorganic compounds, as well as the various types of hydrocarbons including alkanes, alkenes, and alkynes. Test your knowledge on the essential characteristics that define these compounds.

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