An object's displacement must be zero when: it has returned to the starting point.
is has not moved.
All of the above.
None of the above.

Calculate the molarity of 48.0 ml of 6.00 m h2so4 diluted to 0.250 l .

An electron moved from shell n = 2 to shell n = 1. what most likely happened during the transition? a fraction of a photon was added. a photon of energy was absorbed. a fraction of a photon was removed. a photon of energy was released.

The atomic number, or number, is the described as the number of in the nucleus of an chemical element.