mechanical mixture

Thân thiện

A student separates a mechanical mixture of sand and iron filings using a magnet.

Definition

Noun: A mechanical mixture is a type of mixture in which the different substances are physically combined but not chemically bonded. The individual components retain their own properties and can be separated from each other using physical, mechanical methods.

Usage

This term is primarily used in scientific contexts, especially in chemistry and materials science, to describe heterogeneous mixtures. It emphasizes the physical nature of the combination and the possibility of separation without chemical reactions.

Examples

• Noun:
  • Granite is a classic example of a mechanical mixture of quartz, feldspar, and mica.
  • A salad is a mechanical mixture; you can pick out the tomatoes, lettuce, and croutons.
  • In the lab, we separated the sand and iron filings, demonstrating it was a mechanical mixture.

Advanced Usage

• "to form a mechanical mixture": to combine physically without dissolving or reacting.
  • When oil and water are shaken together, they temporarily form a mechanical mixture before separating.

Variants and Related Words

• Mixture (n): a more general term for a substance made by combining other substances.
• Heterogeneous mixture (n): a mixture with a non-uniform composition, often synonymous with a mechanical mixture.
• Mechanical separation (n): the process of separating the components of a mechanical mixture (e.g., by filtration, magnetism, sieving).

Synonyms

• Physical mixture
• Heterogeneous mixture (in many contexts)

Antonyms

• Solution (a homogeneous mixture where components are dissolved and cannot be separated mechanically)
• Compound (a pure substance formed by chemical combination of elements)

Học thuật

Noun

1. a mixture whose components can be separated by mechanical means