论文部分内容阅读
一、氧化还原反应的基本概念 例1(1999年广东高考)针对以下A一D四个涉及HZO:的反应(未配平),填写空白: (A)NaZO:+HCI—H20:+NaCI (B)AgZO+HZOZ—Ag+0:+HZO 八 (C)HZO:—HZO+02 (D)H20:+CrZ(50;)3+KOH—KZC心4+KZSO4+HZO (1)HZOZ仅体现氧化性的反应是(填代号)_. (2)HZO:既体现氧
First, the basic concept of redox reaction Example 1 (Guangdong college entrance examination in 1999) for the following A D four HZO: reaction (unbalanced), fill in the blank: (A) NaZO: + HCI-H20: + NaCI (B )AgZO+HZOZ—Ag+0:+HZO Eight(C)HZO:—HZO+02 (D)H20:+CrZ(50;)3+KOH—KZC Core 4+KZSO4+HZO (1)HZOZ only shows oxidation The sexual response is (fill code) _. (2) HZO: reflects oxygen