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Hydrogen Compounds quiz

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이 집합의 용어 (10)

  • What charge does the hydrogen atoms have in a molecule of water?
    In a molecule of water, hydrogen atoms have a partial positive charge due to the polar nature of the water molecule.
  • What are the three main types of hydrides?
    The three main types of hydrides are ionic, covalent (molecular), and metallic hydrides.
  • What is the oxidation number of hydrogen in ionic hydrides?
    In ionic hydrides, hydrogen has an oxidation number of -1.
  • Which groups of metals form ionic hydrides with hydrogen?
    Ionic hydrides are formed with group 1A or 2A metals, except beryllium.
  • What is the oxidation number of hydrogen in covalent hydrides?
    In covalent hydrides, hydrogen has an oxidation number of +1.
  • Which elements do not form covalent hydrides with hydrogen?
    Boron and astatine do not form covalent hydrides with hydrogen.
  • What is a characteristic feature of metallic hydrides?
    Metallic hydrides often do not follow a strict stoichiometric ratio as hydrogen atoms fill gaps in the metal lattice structure.
  • What type of hydride is ammonia considered?
    Ammonia is considered a covalent hydride.
  • What type of hydride is methane considered?
    Methane is considered a covalent hydride.
  • Why is understanding hydrides important in chemistry?
    Understanding hydrides is crucial for comprehending the diverse chemical behavior of hydrogen in different compounds.