For the reaction nh3 no → n2 h2o, identify the reactants, products, and their coefficients once the equation is balanced.

  The  balanced equation  is

=4NH3 +6NO→ 5 N2  + 6H2O

In  the reaction  above the reactant  are  NH3  and  NO

   product are= N2  and H2O

The  coefficients are  4, 6 ,5,6

    Explanation

When writing  a  chemical reaction reactants are written   on the  left hand side,  while product are written on right  hand side.

Coefficient  are  the number in  front of  the formula  in a balanced chemical  reaction.  

the potential energy of the reactants is 200j.

from the energy diagram, the energy of the product formed is 350j; this means that, this reaction is an endothermic reaction, because it absorbs energy from its environment.

i would say b

explanation:

but i think i would need more information than that