For a chemical reaction, if the activation energy of the reaction is reduced by using a catalyst, then the reaction rate is also reduced.A.正确B.错误的答案是什么.用刷刷题APP,拍照搜索答疑.刷刷题(shuashuati.com)是专业的大学职业搜题找答案,刷题练习的工具.一
Question. The activation energy for a simple chemical reaction A = B is E a in forward direction. The activation energy for reverse reaction(a) is negative of Ea(b) is always less than Ea(c) can be less than or more than Ea(d) is always double of Ea. 相关知识点: 试题来源: ...
For a chemical reaction, if the unit of the rate constant k is mol dm-3·S-1, then the reaction order is ( ) A. 0 B. 3/2 C. 1 D. 1/2 如何将EXCEL生成题库手机刷题 如何制作自己的在线小题库 > 手机使用 分享 反馈 收藏 举报 参考答案: A 复制 纠错 举一反三 初产妇,27...
百度试题 结果1 题目The rate of a chemical reaction depends ___ many factors. A. on B. in C. at D. for 相关知识点: 试题来源: 解析 A。depend on 是固定搭配,表示“取决于”。反馈 收藏
B Chemical reactions make for some great experiments. You can make use of the COz given off by a baking sod a (小苏打) and vinegar (醋) reaction to blow up your balloon!What you'll need:★Vinegar;★balloon;★ A soft drink bottle;★About 40 ml of water;★ A teaspoon of baking soda...
A Chemical reactions(化学反应) make for some great experiments. You can make use of the CO2 (carton dioxide) given off by a baking sod a and lemon juice reaction to blow up your balloon!What you'll need:★ A balloon.★ About 40 ml of water ( a cup is about 250 ml, so you don...
A Chemical reactions(化学反应)make for some great experiments.You can make use of the CO2 given off by a baking sod a and lemon juice reaction to blow up your balloon!What you'll need:★ A balloon★ About 40 ml of water ( a cup is about 250 ml so you don't need much)★ A sof...
Chemical reactions (反应):make for some great experiments.You can make use of the CO2(carbon dioxide) given off by a baking soda ( 小苏打) and vinegar reaction to blow up your balloon !What you'll need • Ballon • About 40 ml of water • Soft drink bottle • Vinegar • A ...
Chemical reactions (反应) make for some great experiments. You can make use of the CO2( carbon dioxide) given off by a baking sod a (小苏打) and vinegar(醋) reaction to blow up your balloon!What you'll need Balloon Balloon Experime iodo About 40 ml of water Soft drink bottle Vinegar ...
根据“The baking soda is a base, while the vinegar is an acid. When the two combine(结合), they create CO2.”小苏打是一种碱,而醋是一种酸。当两者结合时,就会产生二氧化碳。可知,小苏打和醋的反应会释放出二氧化碳,故选C。【小题2】细节理解题。根据“Before you begin, make sure that you ...