If 45 moles of NH3 and 50 moles of NO2 react, which one is the limiting reactant ? 8 NH3 (g) + 6 NO2 --> 7 N2 (g) +12 H2O (g)

NH₃ is limiting reactant .

Explanation:

Given data:

Number of moles of NH₃ = 45 mol

Number of moles of NO₂ = 50 mol

Limiting reactant  = ?

Solution:

Chemical equation:

8NH₃ + 6NO₂        →      7N₂  + 12H₂O

Now we will compare the mole of reactants with products.

               NH₃           ;          N₂

                 8              :          7

               45              :        7/8×45 = 39.4 mol

                NH₃           ;         H₂O

                 8              :          12

               45              :        12/8×45 = 67.5 mol

               NO₂           ;          N₂

                 6              :          7

               50              :        7/6×50 = 58.3 mol

               NO₂           ;         H₂O

                 6              :          12

               50              :        12/6×50 = 100 mol

Less number of moles of product are formed by the ammonia thus it will be limiting reactant.

- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.

- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.

- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.

- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.

so the best choice is a.) 2 calcium (ca) atoms

give me abc and i will get it for u.