[原理]“碘钟”反应是SO32\ufffd\ufffd与IO3\ufffd\ufffd反应的别称.总反应为:15HSO3\ufffd\ufffd+6IO3\ufffd\ufffd 15SO42\ufffd\ufffd+3I2+9H++3H2O主要反应有三步,第一步最慢,是反应速率决定步骤:①3HSO3\ufffd\ufffd+IO3\ufffd\ufffd+3H2O 3SO42\ufffd\ufffd+I\ufffd\ufffd+3H3O...