In the field of chemistry, the understanding of the word "air" has undergone radical change. Air for John Mayow, a seventeenth-century chemist, was essentially a receptacle for airborne particles, and through them manifested a variety of chemical properties. But although Mayow and a few other chemists did detect specific chemical properties in what we call gases (including our carbon dioxide), most chemists left them unaccounted for until the beginning of the eighteenth century. As chemists became aware that the atmosphere itself (and not just particles within it) had a role to play in combustion, respiration, and other reactions, they did not attribute this to the chemical properties of air but rather to substances that air could absorb and release according to circumstances. Thus, air provided a physical environment in which some reactions took place
- A.Air was not involved in chemical reactions such as combustion and respiration.
- B.The absorption and release of substances in the air depended on the gases in the atmosphere.
- C.Carbon dioxide was the most important component of air and allowed chemical reactions to take place.
- D.The air had no chemical properties but contained particles that did.
- A는 틀린말이고 c는 언급되어 있지 않아서 BD중에 고민하다 B골랐는데,, D가 정답인 근거문장과 b가 오답인 근거문장을 못찾겠습니다.