問題詳情

22. What is the sum of all coefficients when the following equation is balanced? NH3(g) + O2(g) → NO2(g) + H2O(g)
(A) 6
(B) 14
(C) 17
(D) 21
(E) 23

參考答案

答案:D
難度:計算中-1
書單:沒有書單,新增