미해결 질문A(n) ___ is a substance that speeds up a chemical reaction without being used up in the reaction.1006views
미해결 질문A ___ is a substance that speeds up a chemical reaction without being used up in the reaction.891views
미해결 질문What are the roles of hydrogen peroxide oxygen hydrogen and catalase in the following reaction?784views
미해결 질문A substance that accelerates any chemical reaction but is not consumed in the reaction is a _____.847views
교과서 질문(a) What is a catalyst? (b) What is the difference between a homogeneous and a heterogeneous catalyst?
객관식At 300 K, a catalyst lowers the activation barrier from 20 kJ/mol to 10 kJ/mol. Which of the following statements is true regarding the rate constant for the catalyzed reaction compared to the uncatalyzed reaction? (R = 8.314 J mol⁻¹ K⁻¹)895views