A scientist determined the rate of an enzyme-catalyzed reaction by measuring the amount of product formed over time. The following curve was generated from the data collected. The rate of the reaction could also be determined by measuring the change in the amount of enzyme Answer A: measuring the change in the amount of enzyme A measuring the change in the amount of substrate Answer B: measuring the change in the amount of substrate B measuring the change in salt concentration Answer C: measuring the change in salt concentration C adding more substrate Answer D: adding more substrate D adding more enzyme

Modern weaponry has increased the number of deaths in wars and violent conflicts.

Why is the bond angle in a water molecule less than the bond angle of methane? a. the central oxygen atom in water has two lone pairs of electrons, whereas the central carbon atom in methane has no lone pairs. b. the central hydrogen atom in water has one lone pair of electrons, whereas the central carbon atom in methane has two lone pairs. c. the central oxygen atom in water has four lone pairs of electrons, whereas the central carbon atom in methane has only one lone pair. d. the central oxygen atom exerts more repulsive force on surrounding atoms than the central carbon atom in methane does. reset next

Apump contains 0.5 l of air at 203 kpa. you draw back on the piston of the pump, expanding the volume until the pressure reads 50.8 kpa. what is the new volume of the air pump