Which of the following statements is true about a catalyst?
A. A catalyst remains unchanged in mass at the end of the reaction
B. The chemical composition of catalyst changes at the end of the reaction
C. Catalyst initiates the reaction
D. Catalyst changes the position of reaction equilibrium
Answer:A
Which of the following statements is true about a catalyst?
A. A catalyst remains unchanged in mass at the end of the reaction B. The chemical composition of catalyst changes at the end of the reaction C. Catalyst initiates the reaction D. Catalyst changes the position of reaction equilibrium