加碘食盐所含的碘酸钾(KIO3)中,碘元素的化合价为 A.+1       

加碘食盐所含的碘酸钾(KIO3)中,碘元素的化合价为

A+1               B+3                C+5               D+7

答案

C

相关题目

All too ________ it is time to go back to school after the wonderful winter holi
All too ________ it is time to go back to school after the wonderful winter holidays.       A. often                        B. fast                    
      If I were writing a history of my family, some of the darkest moments
      If I were writing a history of my family, some of the darkest moments recorded would be those about Christmas trees. One would certainly think otherwise; selecting and putting up our trees
平面单位向量满足:则(       ) A.         B.     
平面单位向量满足:则(       ) A.         B.           C.          D.
--- Mum, may I go to the cinema?   --- No, you ____. You ____ finish your wo
--- Mum, may I go to the cinema?   --- No, you ____. You ____ finish your work first. A. can’t; can                           B. may not; may     C. can’t; mus
【10福建宁德1】.近年来我国自然灾害频频发生,这些自然
【10福建宁德1】.近年来我国自然灾害频频发生,这些自然灾害中常常伴随如下现象,其中涉及化学变化的是   A.房屋倒塌       B.山体滑坡     
能够检测到胰岛素的部位是A.胰动脉B.胰静脉C.胰管D.十
能够检测到胰岛素的部位是A.胰动脉B.胰静脉C.胰管D.十二指肠
如图所示,a、b、c是电场线上的三点, a、b间的距离等于b、c
如图所示,a、b、c是电场线上的三点, a、b间的距离等于b、c间的距离,以下判定一定正确的是(          ) A、>>              B、= C、> 
(12)已知,且,则的值是          .
(12)已知,且,则的值是          .

最新题目