Copper if: 67.93% of the time copper atoms have a mass of 62.929 amu and the remaining copper atoms have a mass of 64.927 amu. PLEASE HELP ME

Clyde and marilyn are riding a roller coaster. during which section(s) of the track is their potential energy converted to kinetic energy? a. from point b to point c only b. from point b to point d only c. from point a to point b only d. from point a to point b and from point c to point d

From the choices provided below, list the reagent(s) in order that will react with cyclopentanone to form the compound shown below.

What is the chemical formula for dihydrogen monoxide