下列对化学变化主要特征认识正确的是( )A、有能量变化      

下列对化学变化主要特征认识正确的是(  )

A、有能量变化        B、物质的颜色和状态发生改变

C、有其他物质生成     D、发光放热

 

答案

C

解析:略

 

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