問題詳情

17. Which of the following statements are INCORRECT?
(A) 100 ppb


(B) The number 1.2500 x 104has five significant figures.
(C)0.02(±0.02)+0.01(±0.02)-0.02(±0.03)=0.01(±0.04)
(D) Molality is the number of moles of a substance per liter of solution.

參考答案

答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增