an uncatalyzed reaction has a rate of 4.2 × 10^–7 sec^–1. when an enzyme is added the rate is 3.2 × 10^4 sec^–1. calculate the rate enhancement caused by the enzyme.

Will give brainliest it is a lab from k12 here is the linkfor each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. type your answer here. (score for question 3: of 5 points) were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. type your answer here. (score for question 4: of 5 points) make a general statement about the reactivity of the metals in this experiment. type your answer here.

What is the mass defect of a mole of nuclei with 1.8 x 10^15 j/mol binding energy?

Joe shines white light into a bowl half full of water at an angle of incident of 27.5°. calculate the angle of refraction in the water given the indices of refraction for air and water are 1.00 and 1.36, respectively.