정의: In chemistry, a substance is a unique form of matter with constant chemical composition and characteristic properties. Chemical substances may take the form of a single element or chemical compounds. If two or more chemical substances can be combined without reacting, they may form a chemical mixture. If a mixture is separated to isolate one chemical substance to a desired degree, the resulting substance is said to be chemically pure.
| 핵심 연구 분야 | Infrastructure |
|---|---|
| 주요 연도 | 2022년 |
| 주요 연관 키워드 | industrial |
| 좋아요 수 | 0 |