Which chemical is the building block of amino acids and proteins

What is the mass of each element in a 324.8 sample of co2

What three things determine the shape and size of a puddle when water is poured out onto a surface

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