Achange in the identity of a nucleus due to a change in the number of protons is called

Stage in which a typical star has completely stopped fusion

Consider the story you just read. all but one of the choices below indicate that something is living.

How does a catalyst increase the speed of a reaction? a. the catalyst eliminates the activated complex stage, allowing products to form immediately. b. the catalyst lowers the energy level of the reactants, making it easier for them to react. c. the catalyst makes it easier for the activated complex to form, lowering the activation energy. d. the catalyst raises the energy level of the products, making the reaction finish sooner. reset next