【判断题】【消耗次数：1】
化学反应常伴有发光现象,但并非所有的发光现象都属于化学反应。
①
正确
②
错误
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相关题目
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关于化学反应速率的说法正确的是( )。
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对于任何化学反应来说，反应速率越快，反应现象就越明显
②
化学反应速率是指一定时间内，任何一种反应物浓度的减少或任何一种生成物浓度的增加不变
③
根据反应速率的大小可知化学反应进行的相对快慢
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化学反应速率可表示可逆反应进行的程度
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