Carry out the following calculation, paying special attention to significant figures, rounding, and units: (1.01 × 102 g)(44.7 m/s)2 2 = × 10 g·m2/s2

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.

Word equation for k+ h2o yield koh + h2

The comparison of the number of atoms in a copper coin the size of a penny with the number of people on earth is made to illustrate which of the following? a. that atoms are indivisible b. that atoms are very small c. that atoms are very large d. that in a copper penny, there is one atom for every person on earth