Why do people make mixtures

Acontrol during an experiment. might change remains constant does not exist does change

Chlorophyll a had the molecular formula c55h72mgn4o5 how many atoms are in this molecule

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