Help please! urgent! the mass of object a is 152.2 g
calculate the volume of object a,
calculate the density of object a,
if object a is cut into two equal parts, what is the density of one half of object a
please help!

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?

Water's surface tension and heat storage capacity are accounted for by its a) orbitals b) weight c) hydrogen bonds d) mass e) size

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