How does a catalyst influence a chemical reaction? o It speeds up or slows down a chemical reaction by direct participation.
O It reacts with products to increase the concentration of reactants.
O It decreases the amount of energy necessary for the reaction to proceed.
It increases the total amount of products formed.

Texas has an impending storm, and california is experiencing a water crisis. match the technologies with the state that can use them to reduce the effects eddies natural hazards. texas is the storm cellar and the wood that is crisscrossed. california is the dam and the storage tanks

Stephen is a student who wants to test his knowledge of medical terminology. which option could he use?

Which statement about relative potential energy of electrons is correct? a. an electron in the 2 p orbital of the second electron shell has more potential energy than an electron in the 2 s orbital of the second electron shell. b. an electron in the 2 p orbital of the second electron shell has more potential energy than an electron in the 3 p orbital of the third electron shell. c. an electron in the 3 p orbital of the third electron shell has more potential energy than an electron in the 2 p orbital of the second electron shell.