FAST RESPONSE PLEASE Nitrogen gas can be prepared by passing gaseous ammonia over solid
copper (II) oxide at high temperatures. If 18.1 g of NH3 is reacted with 90.4
g of Cuo, which is the limiting reactant? How many grams of N2 will be formed?

Explain how you solved for your answers.

Unbalanced equation: NH3+ CuO N2(g)+ Cu + H2O

answer: mercury

explanation:

  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-

with this one i know the answer in craters one reason i looked it up and i learned about it there is my evidence

geosphere and hydrosphere.

this is because the geosphere has to do with geological events, while the hydrosphere controls all water on earth.