Aresearcher proposes a model of an enzyme-catalyzed reaction in which a reactant is converted to a product. the model is based on the idea that the reactant passes through a transition state within the enzyme-substrate complex before the reactant is converted to the product. which of the following statements best explain how the enzyme speeds up the reaction?

How are isotopes of the same chemical element alike? how are they different?

Displacement is the slope of a velocity vs. time graph a. true b. false

The small bags of silica gel you often see in a new shoe box are placed there to control humidity. despite its name, silica gel is a solid. it is a chemically inert, highly porous, amorphous form of sio2. because water vapor readily adsorbs onto the surface of silica gel, it acts as a desiccant. despite not knowing mechanistic details of the adsorption of water onto silica gel, from the information provided you should be able to make an educated guess about the thermodynamic characteristics of the process. predict the signs for δg, δh, and δs for the adsorption of water.