Which of the following statements best describe how enzymes differ from ordinary chemical catalysts? a) enzymes are inorganic in nature. b) enzymes catalyze select chemical reactions. c) enzymes bind their substrates for for a brief time. d) enzymes increase the rate of a chemical reaction.

Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.

How many grams of iron can be made from 16.5 grams of fe2o3

Asolution is made by dissolving 2.3 moles of sodium chloride (nacl) in 0.155 kilograms of water. if the molal boiling point constant for water (kb) is 0.51 °c/m, what would be the boiling point of this solution? show all the steps taken to solve this problem.