g Although graphical methods are available for accurate determination of the Vmax and KM of an enzyme-catalyzed reaction, sometimes these quantities can be quickly estimated by inspecting values of Vo at increasing [S]. Estimate the Vmax and KM of the enzyme catalyzed reaction for which the following data were observed. Vo is the initial reaction rate; Vmax is the maximum reaction rate; and KM is the Michaelis-Menten constant. [S] (M) Vo (microMolar/min) 2.5x10-6 28 4.0x10-6 40 1x10-5 70 2x10-5 95 4x10-5 112 1x10-4 128 2x10-3 139 1x10-2 140

Which of the following is most likely true about water in chemical systems? a) water dissolves nonpolar ionic compounds. b) water dissociates ionic compounds. c) water dissociates covalent molecules. d) water dissolves nonpolar covalent substances.

Imagine that a new planet is discovered with two moons of equal mass: moon a and moon b. the mass of the new planet is greater than the combined mass of its moons. moon a is farther away from the new planet than moon b. what is the planet's gravitational pull on moon a compared to the planet's gravitational pull on moon b? the planet's gravity repels moon a with a greater force than it repels moon b, which is why moon a is farther away. the gravitational pull on moon b is greater than on moon a because moon b is closer to the new planet than moon a. the gravitational pull on moon b is greater than on moon a because moon b is farther away from the new planet than moon a. the gravitational pull on moon a is the same as the gravitational pull on moon b because distance does not affect the planet's gravity.

If one fission reaction of a uranium-235 atom produced two neutrons, how many neutrons would be released if the chain reaction occurred three more times?