搜索
首页
搜索
首页
首页
/
下列各组反应能产生可燃性气体的是 A.铜投入到浓硝酸中
下列各组反应能产生可燃性气体的是 A.铜投入到浓硝酸中
下列各组反应能产生可燃性气体的是
A.铜投入到浓硝酸中 B.碳投入到热的浓硫酸中
C.电石投入到水中 D.碳酸钙投入到盐酸中
答案
C
解析:
相关题目
------Is ______here? -----No, Bank and Lucy were absent. A. anybody
------Is ______here? -----No, Bank and Lucy were absent. A. anybody B. somebody C. everybody D. nobody
下列说法中正确的是() A. 处于最低能量的原子叫做
下列说法中正确的是() A. 处于最低能量的原子叫做基态原子 B. 3s2表示3s能级有两个轨道 C. 同一原子中,1s、2s、3s电子的能量逐渐
下表是国家对“饮酒驾车”和“醉酒驾车”的界定标准: 白
下表是国家对“饮酒驾车”和“醉酒驾车”的界定标准: 白酒、红酒和啤酒中均含有乙醇(俗称酒精,化学式为C2H5OH),饮酒后酒精可进入人体血液中。
Though _______ focus from work to family, the 34-year-old actress refuses to be
Though _______ focus from work to family, the 34-year-old actress refuses to be a full-time housewife. A. having shifted B. to have shifted C. shifted D. being shif
If I _______ you, I ________ on holiday for a rest. A. were; would go B. was
If I _______ you, I ________ on holiday for a rest. A. were; would go B. was; would go C. were; will go D. was; will go
如图为一直角三角形纸片,∠C=90°,两直角边AC=6㎝,BC=8㎝,
如图为一直角三角形纸片,∠C=90°,两直角边AC=6㎝,BC=8㎝,现将直角边AC沿直线AD折叠,使它落在斜边AB上,且与AE重合,求CD的长
The bus rolled into the valley, _______ over 20 deaths. A. caused B.
The bus rolled into the valley, _______ over 20 deaths. A. caused B. having caused C. causing D. to cause
The bad weather _____ our difficulties. A. added to B. was added to C. adde
The bad weather _____ our difficulties. A. added to B. was added to C. added up D. added up to
最新题目
鲫鱼的身体两侧能感知水流方向和水流速度的结构是: A. 身
如图,椭圆的中心在原点,长轴AA1在x轴上.以A、A1为焦点的双
在高等动物的某一器官中,发现了如下图的细胞分裂图像,
图描绘了汉代农民使用四齿钉耙耕作的场景。它反映出当时
名著阅读(5分)阅读选文,回答问题。关平谏曰:“父亲奈
两平面镜M1和M2互相垂直交于棱l,光线a经M1的反射线为c,再经M2
有一质量m=0.1kg,容积V=1×10-3m3,横截面积S=2.5×10-3m2的
在标准状况下,等质量的CH4 和CO2比较,下列说法中正确的是
7月5日,新疆乌鲁木齐市发生打砸烧抢严重暴力犯罪事件。这
如下图所示的四种情景中,属于光的折射现象的是( )
的图象是( )
流行语变化从一个侧面揭示出中国社会观念和社会生活的诸
计算:36÷(-4)×(-)=________.
中国古代许多文人在仕途失意时,往往寄情于山水,这种做
如图,点A的坐标是(2,0),△ABO是等边三角形,点B在第一
右图表示低倍显微镜观察到的人血涂片的一个视野,下列说
补全对话 ,选择最佳选项完成对话, 有两项多余A. Yes I’d love
Mathematics, ____ just technology, has a life of its own independent of science.
Shelly had prepared carefully for her biology examination so that she could b
读“南美洲轮廓图”,完成下列要求。 (1)下列四幅降水