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浓稀硝酸氧化性强弱辨析

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Consume Guide（2007）

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Abstract
<正>硝酸的氧化性是它的重要特性之一,学生学习这一性质是通过铜与浓稀硝酸反应而认知的。学习中学生通过演示实验观察到,铜为金属活动性顺序表氢之后的一种金属,它与盐酸、稀硫酸不能发生置换反应,但与浓、稀硝酸都能发生化学反应,反应方程式为4HNO_3(浓)+Cu=Cu(NO_3) 2+NO_2+2H_2O
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