(1)铁架台
(2)BD; 2KMnO 4
K 2MnO 4+ MnO 2+ O 2↑;
CE (或ABE);CaCO 3+ 2 HCl = CaCl 2 + CO 2↑+ H 2O ;
CE (或ABE);Zn + 2HCl = ZnCl 2+ H 2↑
(3)红色粉末逐渐变黑; 澄清的石灰水; CO 2+ Ca(OH) 2= CaCO 3↓+ H 2O ; c处缺少尾气处理装置
(4)
(5)152g; 70%
(1)铁架台
(2)BD; 2KMnO 4
K 2MnO 4+ MnO 2+ O 2↑;
CE (或ABE);CaCO 3+ 2 HCl = CaCl 2 + CO 2↑+ H 2O ;
CE (或ABE);Zn + 2HCl = ZnCl 2+ H 2↑
(3)红色粉末逐渐变黑; 澄清的石灰水; CO 2+ Ca(OH) 2= CaCO 3↓+ H 2O ; c处缺少尾气处理装置
(4)
(5)152g; 70%