How many moles are in 20.50 grams of nh3?
a. 3.4 x 10 -24 moles
b. 1.23 x 1026 moles
c. 1.204 moles
d. 349.12 moles

1.solid

2.carbon dioxide

3.helium

answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.