Calculate the empirical formula for each of the following stimulants based on their elemental mass percent composition. adenine (a nucleobase (a purine derivative) with a variety of roles in biochemistry): C 44.44%, H 3.73%, N 51.83%

Why is silver chloride is an ionic compound

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

If you try to move a piano and are unable to move it, did you perform any work in the scientific sense of the word? yes? or no? this question is worth 20 points! let it be correct!