(11分)在面具和潜水艇中可用过氧化钠作为供氧剂。请选用适当的化学试剂和实验用品、用下图中的实验装置进行实验,证明过氧化钠可作供氧剂。 (1)A是制取CO 2 的装置。写出A中发生反应的化学方程式: 。 (2)填写表中空格:
(4)试管F中收集满气体后,下一步实验操作是 。 |
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