oxide

/'ɔksaid/

Thân thiện

A scientist examines a sample of iron oxide under a bright light.

Definition

1. Noun:
   • A chemical compound: A substance formed by the combination of oxygen with another element or a radical. This is the fundamental chemical definition.
   • A class of compounds: Refers broadly to any member of the large group of binary compounds where oxygen is the more electronegative component.

Usage

• The word "oxide" is a countable noun. It is used to name specific chemical compounds.
• It is commonly used in scientific, industrial, and environmental contexts (e.g., chemistry, metallurgy, pollution studies).
• It is typically modified by the name of the other element (e.g., iron oxide, carbon dioxide).

Examples

• General:

  • Rust is primarily composed of iron oxide.
  • The atmosphere of Mars contains a high concentration of carbon dioxide.
  • Aluminum forms a protective layer of aluminum oxide on its surface.

• Scientific/Technical:

  • The reaction produced several different metal oxides.
  • Nitrous oxide is sometimes used as an anesthetic.

Advanced Usage

• "To form an oxide": To undergo a chemical reaction with oxygen.
  • When magnesium burns in air, it forms magnesium oxide.
• "Oxide layer": A thin film of oxide on a material's surface.
  • The silicon wafer has a thin oxide layer for insulation.

Variants and Related Words

• Dioxide (n): An oxide containing two atoms of oxygen per molecule (e.g., carbon dioxide, CO₂).
• Monoxide (n): An oxide containing one atom of oxygen per molecule (e.g., carbon monoxide, CO).
• Peroxide (n): An oxide containing a higher proportion of oxygen, often with an O-O bond (e.g., hydrogen peroxide, H₂O₂).
• Superoxide (n): A compound containing the O₂⁻ ion.
• Oxidize (v): To combine with oxygen; to undergo a chemical reaction that increases the proportion of oxygen or decreases the proportion of hydrogen.
• Oxidation (n): The process of oxidizing; the chemical reaction where a substance loses electrons, often involving oxygen.

Synonyms

• Oxidized compound: A more descriptive synonym emphasizing the result of oxidation.
• Oxygen compound: A broader, less specific term.

Related Phrases

• Metal oxide: An oxide where the other element is a metal (e.g., iron oxide, copper oxide).
• Non-metal oxide: An oxide where the other element is a non-metal (e.g., sulfur dioxide, carbon dioxide).
• Mixed oxide: An oxide containing atoms of more than one other element (e.g., a mixed metal oxide catalyst).

Học thuật

Noun

1. any compound of oxygen with another element or a radical