Compute 9.3456+2140.56. round the answer appropriately.

There are 6.022 x 10^23 atoms of hg in 1 mole of hg. the number of atoms in 4.5 moles of hg can be found by multiplying 4.5 by 6.022 x 10^23 a. 2.7 x 10^24 b. 27 x 10^23 c. 2.71 x10^24 d. 27.099 x 10^23

The difference between the atomic number of an element and the element’s atomic mass is the number of ions.

Particles vibrate in a rigid structure and do not move relative to their neighbors.