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 ...
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: 1. Russian is the first language of about 150 million inhabitants of the formerSoviet Union. 2. Russian is a language belonging to the West Slavic subgroup of the Indo-European language family. B: 1. A catalyst is a substance which increases the rate of a chemical reaction. 2. Catal...
The term 'catalyst' is used to describe a substance that ___ in a chemical reaction. 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...
A catalyst is a substance that increases the rate of a chemical reaction without being consumed in the reaction. A catalyst works by providing a different pathway for the reaction, one that has a lower activation energy than the uncatalyzed pathway. What are the three major roles of proteins?
Which of the following is the correct term for a substance that undergoes a chemical change in a reaction? A. Reactant B. Product C. Catalyst D. Solvent 相关知识点: 试题来源: 解析 A。本题考查化学术语。“Reactant”指反应物,是在化学反应中发生变化的物质。“Product”是产物,是化学反应生成...
At the same time, through infrastructure connectivity, the BRI has proved a catalyst to international investment and boosted global interest in and enthusiasm for investment in infrastructure, which provides economic growth and rapid development in participating countries. These efforts have effectively addr...
For a chemical reaction to occur, the reactants have to meet threshold energy called the activation energy.A catalyst is a substance that speeds up... Learn more about this topic: Catalyst | Definition, Types & Function from Chapter 12/ Lesson 6 ...
a base is a substance that neutralizes an acid. a base which is soluble in water is called an alkali.碱就是能中和酸的物质。注意base 和 alkali 的区别。另一种定义: a bronsted-lowry acid is a proton donor.酸就是能提供氢离子(即质子)的物质。 a bronsted-lowry base is a proton acceptor....
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