Which statement defines enzymatic activity? Enzymes are required to slow down biological reactions within cells.
Specific enzymes can catalyze a wide variety of chemical reactions.
Enzymes regulate cellular functions through feedback mechanisms.
Enzymes bind substrates so that reactive groups have many different orientations.

Plz mark brainliest 30 points1) find the momentum of a 12 kg snowball that is rolling with a velocity of 9 m/s.2) an 8 ball with a mass of .5 kg is sitting at rest. it is hit by the cue ball (1 kg) traveling at 2.5 m/s. if the cue ball is at rest after the collision, how fast is the 8 ball traveling after the collision? 3) two football players are running toward each other. if the offensive player is 75 kg and is running 8 m/s, how fast must the 60 kg defensive player run in order for the two players to hit and stop?

Identify the lewis base in this balanced equation: fe3+ h2o fe(h2o)63+

What is calcium oxide+diphosphorus pentoxide--> calcium phosphate balanced