A sample of nitrogen dioxide in a sealed vessel was heated to 575 K, and the total pressure in the vessel was measured to be 0.0980 atm before any reaction had occured. The total pressure in the vessel was monitored over time during the reaction, giving the following data. Time (s) Total pressure (atm) 0 0.0980 25 0.1259 57 0.1348 83 0.1379 What is the rate law for the decomposition reaction?

  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-

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