When a bond forms between two atoms
a. protons are lost.
b. neutrons are lost.
c. energy is released.
d. energy is absorbed.

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 name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

According to the diagram, what sources contribute to the phosphorus found in soil? according to the diagram, phosphorus found in soil contributes phosphorus to what other sources?