An uncatalyzed reaction has a rate of 4.2 x 10 –7 sec –1. When an enzyme is added the rate is 3.2 x 10 4 sec –1. Calculate the rate enhancement caused by the enzyme.

The grooves or folds of the brain are called

Acompound has a molecular weight of 12.124 atomic mass units and the empirical formula c3h40. what is the molecular formula of the compound?

Jose and eric were given four samples in lab. the results of their analysis are shown in the table. based on the data they collected, which sample is most likely a metal?