山东省济宁市第一中学2024届高三上学期12月月考 化学答案
化学试题答案16.(1)浓氨水吸收多余的氨气,防止污染空气(2)溶液红棕色褪去(3)①dacbe②甲基橙或酚酞再用少量水冲洗锥形瓶内壁③偏低17.(1)(2)适当升高温度、适当增压、将高镁低品位铜镍矿粉碎以增大固液接触面积或适当增大硫酸的浓度(3)(或难溶性硅酸盐)(4)BC(5)90%18.(共12分)(1)①(2)5(2)(3)(4)①AC②19.(12分)(1)①②B(2)①②(3)增大反应物的压强(或增大反应物的浓度)20.(1)(2)80(3)①BD②温度升高,反应速率加快,相同时间内消耗量增多,故转化率增大;以反应Ⅱ为主,甲醇的选择性降低,故甲醇的产率降低(其他合理答案均可给分)③...
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