【简答题】Identify and briefly describe some of the forces that have resulted in increased global integration and the growing importance of global marketing.
【多选题】常温下,将某一元酸HA和NaOH溶液等体积混合,实验信息如下,下列判断不正确的是 实验编号 c(HA)/ mo1·L -l c(NaOH)/ mol·L -1 反应后溶液pH 甲 0.1 0.1 pH =9 乙 c 1 0.2 pH =7
C.
乙反应后溶液中:c(Na + )=c(HA)+c(A 一 )
D.
甲反应后溶液中:c(Na + )>c(A 一 )>c(OH 一 )>c(H + )
【简答题】Describe some of the trade-offs faced by each of the following: c. a professor deciding how much to prepare for class.
【简答题】Describe some of the trade-offs faced by each of the following: b. a company president deciding whether to open a new factory.
【单选题】常温下,将某一元酸HA和NaOH溶液等体积混合,两种溶液浓度和混合所得溶液的pH如下表所示 下列说法中,不正确的是 [ ]
B.
实验①所得混合溶液:c(Na + )>c(A - )>c(OH - )>c(H + )
C.
实验②所得混合溶液:c(Na + )=c(A - )
D.
实验③所得混合溶液中由水电离出的OH - 的浓度为1×10 -9 mol/L
【单选题】常温下,将某一元酸HA和NaOH溶液等体积混合,两种溶液的浓度和混台后所得溶液 的pH如下表: 下列判断不正确的是
【简答题】Describe some of the global marketing strategies available to companies. Give examples of companies that use the different strategies.
【简答题】常温下,将某一元酸HA和NaOH溶液等体积混合,两种溶液的物质的量浓度和混合后所得溶液的pH如下表: 实验编号 HA的浓度/(mol?L -1 ) NaOH的浓度/(mol?L -1 ) 混合溶液的pH 甲 0.2 0.2 pH=a 乙 c 0.2 pH=7 丙 0.1 0.1 pH>7 请回答: (1)不考虑其他组的实验结果,仅从甲组情况分析,如何用a的大小来说明HA是强酸还是弱酸 . (2)不...
【简答题】Describe some of the advantages and disadvantages of using cloud computing and cloud storage.
【简答题】Describe some of the trade-offs faced by
each of the following: a. family deciding whether to buy a new
car