| 释义 |
化学变化huàxué biànhuà物质变化中生成其他物质的变化,如木材燃烧放出光和热剩下灰,铁在潮湿空气中生锈等。发生化学变化时,物质的组成和化学性质都改变。{chemical change, in which one substance turns into another, such as burned wood becoming ash after releasing light and heat, iron rusting in wet air, etc. When a chemical transformation occurs, the composition and chemical property of the substance will change too.} |