WHAT I CAN DO Make a chart of electromagnetic waves showing the comparison of its size. Cut out pictures of objects or draw pictures of things that may represent the size of each electromagnetic wave. On a short bond paper, paste the pictures or draw the pictures you have found and arrange them according to the arrangement of EM waves in the electromagnetic spectrum. (You may also use the space below for your output.)

  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-

56 moles of   lieter in chemistry