When the following equation C2H5OH + O2⇌ CO2 + H2O is balanced, what are the coefficients?(A) 2,

問題詳情

69. When the following equation C2H5OH + O2⇌ CO2 + H2O is balanced, what are the coefficients?
(A) 2, 3, 1, 4
(B) 1, 3, 2, 3
(C) 1, 1, 1, 1
(D) 1, 2, 3, 4
(E) 1, 2, 2, 2

參考答案

無參考答案

內容推薦

Adipic acid contains 32% C, 84% O, and 85% H by mass. What is the empirical formula?(A)
Two stationary tuning forks (350 and 352 Hz) are struck simultaneously. The resulting sound is o
在下列四種條件下進行雙氧水分解實驗，請問何者產生氣泡的速率最快？ (A) (B) (C) (D)
A thin-walled hollow tube rolls without sliding along the floor. The ratio of its translational
The inertia of a body tends to cause the body to:(A) speed up (B) slow down (C) resist any chang
The structure below is the repeating unit of a (A) homopolymer formed by an addition reaction. (
Examine the phase diagram for the substance Bogusium (Bo) and select the correct statement. (A)
設X、Y、Z分別代表三種相異之元素，對以下之均衡化學反應式：XZ2 ＋ 4Y → 2甲＋ X而言，依據道耳吞之原子說，甲的化學式為下列何者？(A) YZ　(B) YZ(C)Y2Z　(D)
( )一U形管內，裝有甲、乙、丙三種互不相溶的液體，平衡時如圖所示，其中甲液柱長度與丙液長度相等，d點為丙液柱的中間點，則液中各點的壓力大小關係，何者正確？ (A) e＝f (B) c＝d (C
Which of the following statements are true? A catalyst can act in chemical reaction to: I. Lower