問題詳情
15. 0.12 克碳恰能與 2.0 克 X 元素完全反應，生成化合物 CX2，則 X 的原子量為多少？（原子量：C＝12）
(A) 150
(B) 100
(C) 35
(D) 20。
(A) 150
(B) 100
(C) 35
(D) 20。
參考答案
答案：[無官方正解]
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
內容推薦
- 【題組】21 (A) To wave(B) Waved(C) Waving(D) Had waved
- 【題組】30 (A) viewed(B) considered as(C) taken for(D) thought of as
- The middle period of Tan Dynasty was a time of national ________; the country became famous for
- 某元素原子總數為 505 × 1024 個時，其質量為 80 克，則該元素的原子量為若干？(A) 8 (B) 32 (C) 80 (D) 320。
- I advise you to ________ the chance to travel overseas before the boss changes his mind.(A)drive(
- 【題組】20 (A) anymore(B) much(C) at much(D) at all
- 【題組】29 (A) ,who(B) who(C) that(D) in that
- 【題組】用總長度 38 公尺的鐵絲要沿著筆直河岸圍出一塊長方形土地，若沿河岸的一邊不圍，則所圍成之長方形土地的最大面積為 ____________平方公尺。
- 已知銅元素的原子量是 5，則自然界中銅的同位素 63Cu 和 65Cu 之原子個數比是多少？(A) 3：1 (B) 1：3 (C) 4：1 (D) 1：4。
- I felt annoyed at my roommate’s ________ manner toward me since he gave me the cold shoulder all t
內容推薦
- Love is one of strong emotions that humans feel. Webster’s Dictionary defines love ___31___ a stro
- 【題組】22 (A) which(B) where(C) when(D) what
- Some people ________ overeat when they are under stress. They feel much better with themselves by
- 9 克水中所含的氫原子個數為若干？（原子量：H＝1，O＝16）(A) 01 × 1023 (B) 02 × 1023 (C) 20 × 1024 (D) 42 × 1024。
- 【題組】________ wants to take part in the campaign should be ________.(A)Whomever; encourages(B)Whic
- 【題組】32 (A) depended on(B) based on(C) belonged to(D) happened to
- 【題組】23 (A) at(B) on(C) in(D) to
- ________ diet habit, physical training also plays an important role ________ weight management.(A)
- 下列四個例子的質量大小順序，何者正確？(甲) 2 個乙烷分子（C2H6）、(乙) 54 amu 水分子、(丙) 10 克水、(丁) 10－21 莫耳乙烷(A)(甲)＞(乙)＞(丙)＞(丁) (
- 【題組】When I thanked the lady ________ giving me a hand in time, she merely smiled to me ________ r
- 【題組】33 (A) applies(B) applying(C) applied(D) to apply
- 【題組】24 (A) as fifty times as much as(B) fifty times as many as(C) fifty times very much as(D) fifty
- The bus broke down on the way to the next village and left the passengers ________ in the mountain
- 已知在 STP 時，1 莫耳氣體的體積為 4 升，下列何項物質所含的原子總數最多？（原子量：Ag＝108）(A) 72 克銀 (B) STP 時，24 升 NH3 (C) 4 ℃ 時
- 三、課文綜合測驗Ever since the Levi’s factory closed, Joe ___16___ find a job. ___17___ the chilly winter
- 【題組】34 (A) in fact(B) in detail(C) in secret(D) in return
- 【題組】25 (A) not; but(B) not; only(C) neither; nor(D) either; or
- With great performance, Aaron has received ________ from three universities. He was very delighted
- 【題組】17 (A) With(B) By(C) Since(D) Because
- 【題組】35 (A) repay(B) repaying(C) repaid(D) to repay
- Ask most people in the United States who invented pasta and pizza, and they will tell you that the
- 四、閱讀測驗There are three areas─North Africa, southern Europe, and the Middle East─surrounding the Med
- 【題組】27 (A) when(B) what(C) who(D) where
- 【題組】37 Which of the following Mediterranean dishes may be a challenge to foreign visitors?(A) Cow he
- 【題組】38 Based on this article, what should visitors do when a local dish is served?(A) They should gi