chemical property
Học thuậtThân thiện
Definition
Noun: A chemical property is a characteristic of a substance that becomes evident during, or is described by, a chemical reaction. It involves a change in the substance's chemical identity, transforming it into one or more different substances. This contrasts with a physical property, which can be observed without changing the substance's identity.
Usage
A chemical property describes how a substance interacts with other substances or changes under specific chemical conditions. It is an intrinsic attribute that determines the substance's potential to undergo specific chemical changes.
Examples
- Flammability is a chemical property of gasoline.
- The chemical property of reactivity with acid helps distinguish gold from pyrite.
- Scientists study the chemical properties of new compounds to understand their stability.
- A key chemical property of iron is its tendency to oxidize and form rust.
Advanced Usage
- In Materials Science: Chemical properties like corrosion resistance or catalytic activity are critical for selecting materials for engineering applications.
- In Environmental Science: The chemical properties of pollutants, such as their biodegradability or toxicity, determine their environmental impact and persistence.
Variants and Related Words
- Chemical Reaction (n): A process where substances (reactants) are transformed into different substances (products), demonstrating chemical properties.
- Reactivity (n): A common type of chemical property describing how readily a substance undergoes a chemical reaction.
- Stability (n): A chemical property describing a substance's resistance to decomposition or reaction under specified conditions.
Synonyms
- Reactivity characteristic
- Chemical characteristic
- Chemical behavior
Antonyms
- Physical property: A characteristic that can be observed or measured without changing the substance's chemical identity (e.g., density, melting point, color).
Related Phrases
- To exhibit a chemical property: To demonstrate a specific chemical behavior.
- Sodium exhibits the chemical property of reacting violently with water.
- To determine chemical properties: To investigate or identify how a substance behaves chemically.
- The lab work aimed to determine the chemical properties of the unknown sample.
Noun
- a property used to characterize materials in reactions that change their identity