1. Circle the one in each pair represents a greater number of items a) 5 dozen mole of lithium atoms
or
60 mole of sulfur atoms
b) 0.75 mole of cars
or
4.5x1023 cars
c) 7701 baseballs
or
7.710 x 10 baseballs

sure what is it? ^w^

h

  the   balanced   equation   for   reaction of   ca metal   with   o2 to   produce   cao   is as below

2 ca+ o2→ 2 cao2

  explanation

the reaction is   balanced     since the   number of atoms   in reactant side is   equal to   number of atoms   in   product side.   for   example   they   are 2   atom of   ca in   reactant   side   and   2   atoms of ca   in   the product side.

  the   process   is a   meet the   requirement   of   redox   reaction because :     calcium   is   oxidized   from   oxidation state 0   to 2+   while   oxygen   is reduced from   oxidation   state   0   to 2-

the electron configuration that you gave me has 16 electrons ergo it has 16 protons ergo it is the element sulfur.