出典:Wiktionary
出典:『Wiktionary』 (2026/03/18 21:45 UTC 版)
chemical reaction (plural chemical reactions)
出典:Wikipedia
出典:『Wikipedia』 (2011/07/31 11:22 UTC 版)
A chemical reaction is a process that leads to the transformation of one set of chemical substances to another. Chemical reactions can be either spontaneous, requiring no input of energy, or non-spontaneous, typically following the input of some type of energy, viz. heat, light or electricity. Classically, chemical reactions encompass changes that strictly involve the motion of electrons in the forming and breaking of chemical bonds, although the general concept of a chemical reaction, in particular the notion of a chemical equation, is applicable to transformations of elementary particles, as well as nuclear reactions.
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a chemical reaction
a chemical reaction
化学反応.
a chemical reaction
undergo a chemical reaction
化学作用.
a chemical reaction in which atoms combine to form a new chemical compound, called condensation
a reversible chemical reaction
a chemical reaction called photoreaction
a chemical formula called a chemical reaction equation
a type of chemical reaction called a colour reaction
a precipitate that results from a chemical reaction
a chemical reaction called {alkaline reaction}
a chemical reaction called a second-order reaction
a substance that undergoes a chemical change in a reaction
a reaction characterized by of formed with the absorption of heat, called an endothermic reaction
the formation of chemical compounds caused by a chemical reaction
a chemical reaction known as a flame reaction
the process of copolymerizing
a chemical reaction, called depolymerization