试题与答案

下图形象地表示了某化学反应前后分子的变化.其中○表示氧原子、●表示碳原子,则该反

题型:填空题

题目:

下图形象地表示了某化学反应前后分子的变化.其中○表示氧原子、●表示碳原子,则该反应的化学方程式为______;该示意图说明了化学变化的实质是______.

答案:

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