2024届高三全国100所名校AB测试示范卷·化学[24·G3AB(新教材老高考)·化学-SJB-必考-HEB]六试题
(5)蒸馏(2分)(6)1.9(3分)12.(1)2:1(2分)(2)①c(2分);Ce3+-e—Ce4+(3分)②6(3分)(3)①2NHHS0,电解(NH,)2S,O,+H,+②0.18mol(各3分)13.(1)①吸氧(2分)②Fe-2e—Fe2+(2分)③...
(5)蒸馏(2分)(6)1.9(3分)12.(1)2:1(2分)(2)①c(2分);Ce3+-e—Ce4+(3分)②6(3分)(3)①2NHHS0,电解(NH,)2S,O,+H,+②0.18mol(各3分)13.(1)①吸氧(2分)②Fe-2e—Fe2+(2分)③...
CHow Much Exercise Do I Need?When it comes to exercise,less is not more-but it's certainly better thannone.Physical inactivity account for (as many as...