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Participation: Prize 1 Wealth; Correct answer: Reward of 3 wealth points ; Note: This post is valid for 48 hours. Single-choice question: Which of the following statements is correct? ( ) A. Using a catalyst in a reaction does not change the rate of the chemical reaction. B. Using a catalyst in a reaction can increase the rate of the chemical reaction. C. Reducing the pressure in a reaction can increase the rate of the chemical reaction. D. Changing the pressure in a reaction has no effect on the rate of the chemical reaction. Answer: B. Your participation is the greatest support for our work. Giving roses to others leaves a pleasant fragrance in one’s own hands. https://bbs.hcbbs.com/static/image/hrline/1.gif https://bbs.hcbbs.com/static/image/hrline/2.gif Note: The answers will be released automatically after two days. “My Device, My Home – Large-Scale Original Photo Sharing Event (Part 2): https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1868167&extra=page%3D1 【Q&A】Summary of Catalyst Coking and Reforming Oil Blending Data for 2017–2018~~Continuously being updated: https://bbs.hcbbs.com/thread-1826018-1-1.html 【Daily Question】Summary of Catalyst Coking and Reforming Oil Blending Data for 2017–2018~~Continuously being updated: https://bbs.hcbbs.com/thread-1811219-1-1.html
B. Using a catalyst in the reaction can increase the rate of the chemical reaction
B. Using a catalyst in the reaction can increase the rate of the chemical reaction
B. Using a catalyst in the reaction can increase the rate of the chemical reaction
C. Quality planning, quality control, quality improvement
B. Using a catalyst in the reaction can increase the rate of the chemical reaction