2. The energy of motion is called energy.
A. potential
B. electrical
C. chemical
D. kinetic

Determine the wavelength of the light absorbed when an electron in a hydrogen atom makes a transition from an orbital in the n=3 level to an orbital in the n=7 level.

Reactions in cells take place at about a. 40°c b. 0° c. 100°c d. 60°c

Assume that 13.5 g solid aluminum (al) react with hcl to produce solid aluminum chloride (alcl3) salt and gaseous hydrogen (h2) at standard temperature and pressure.