2NH3 -> N2+ 3H2 - If 2.5 moles of N2 reacts are formed, how many moles of NH3 (ammonia) are decomposed?
- If 6 moles of NH3 (ammonia) are decomposed, how many moles of H2 gas reacts completely?
- If 9 moles of H2 gas is formed, how many moles of N2 are also formed?

  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-

it is a solid

explanation:

i dont know the answe