is consumed in the reaction C. increases the rate of a reaction without being consumed D. has no E. ffect on the reaction rate 相关知识点: 试题来源: 解析 C。原因:“A catalyst is a substance that increases the rate of a reaction without being consumed in the process.”。 反馈 收藏 ...
“A catalyst(催化剂)for creativity on the worldwide stage,British youth culture movements from the Teddy Boys of the 2018s to the Grime Scene of the 2018s continue to play a pioneering role in music,fashion and creativity across he globe,”it wrote on its website. ...
apeople come from 正在翻译,请等待...[translate] aMenneking 开始[translate] aa catalyst is a substance that increases the rate of a chemical reaction without itself being used up 催化剂是增加一个化学反应的率,不用用完的本身的物质[translate]...
A substance that takes part in a chemical reaction is called a ___. A. reagent B. product C. catalyst D. solvent 相关知识点: 试题来源: 解析 A。参与化学反应的物质叫试剂,“reagent”是试剂,“product”是产物,“catalyst”是催化剂,“solvent”是溶剂。反馈 收藏...
百度试题 结果1 题目Technology is a force that acts as a catalyst for change.A.对B.错 相关知识点: 试题来源: 解析 A 反馈 收藏
A. increases the rate B. decreases the rate C. changes the products D. is consumed completely 相关知识点: 试题来源: 解析 A。催化剂(catalyst)的作用是提高化学反应的速率,而自身在反应前后质量和化学性质不变。反馈 收藏
If a catalyst is added to a chemical reaction, which of the following is most likely to occur? A. The activation energy will increase. B. The reaction time will be prolonged. C. The reaction rate will remain the same. D. The reaction rate will increase. ...
28. Which statement about catalysis is correct?(A) If a catalyst increases the forward rate of a reaction by a factor of two, it must increase the rate of the reverse reaction by a factor of two.(B) If a catalyst increases the rate of formation of a product by a factor of two, ...
A. reactant B. product C. catalyst D. solute 相关知识点: 试题来源: 解析 C。解析:加快化学反应但自身不被消耗的物质叫催化剂。选项 A 反应物会被消耗;选项 B 产物是反应生成的;选项 D 溶质不是起这个作用。反馈 收藏
aTo serve as a catalyst for future bioscience growth, the research and development (R&D) sector is growing rapidly thanks to the world-class research facilities such as the Southwest Research Institute (SwRI) and the Texas Biomedical Research Institute. 正在翻译,请等待... ...