Given the balanced equation representing a reaction:
2kclo3(s) ==> 2kcl(s) + 3o2(g)
the oxidation state of chlorine in this reaction changes from
(1) -1 to +1 (3) +1 to -1
(2) -1 to +5 (4) +5 to -1

h let me think

"the periodic table is arranged in order of atomic number."

shield volcanos are angry and get mad over the smallest things so much that there heads erupt   pahoehoe and a'a lava. a composite volcano is the poller opposite of a shield volcano. its   peaceful thing and knows how to control its emotions.      

it's c (engineer's do their work with mechanical stuff not on any living being)