What units are used to measure air pressure?

What are the first three quantum numbers for the electrons located in subshell 2s?

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

What happens to the temperature of a substance when the average kinetic energy of its particles increases?