【简答题】A.They will have to take even larger doses. B.They will become physically impaired. C.They will suffer from minor discomfort. D.They will experience a very painful process.
【简答题】Some students believe that whether they have much money or large possessions, they will be happy. They believe that they will be able to do anything they wanted to do if they have money. Some students...
【简答题】(8分)(1)两个同容积的密封容器A、B,常温下,A中充入a g A气体,B中充入a g CH 4 气体,A与B内的压强之比是4∶11,则A的摩尔质量为_________________。 (2)某氯化镁溶液的密度为d g/cm 3 ,其中镁离子的质量分数为 w , a mL该溶液中Cl - 的物质的量为 。 (3)标准状况下VL氨气溶解在1L水中(水的密度近似为1g/ mL),所得溶液的密度为ρ...