Given the reaction: 4nh3 +5o2 > 4no +6h2o

when 1.20 mole of ammonia reacts, the total number of moles of products formed is:

a. 1.20

b. 1.50

c. 1.80

d. 3.00

e.12.o

3 moles are produced with the reaction of 1.20 mol of NH₃  (Option 3)

Explanation:

The reaction is:

4NH₃  +  5O₂  ⇒  4NO  + 6H₂O

Therefore, 4 moles of ammonia react with 5 moles of oxygen, to produce 4 moles of nitrogen monoxide and 6 moles of water.

Ratio is 4:4 with NO and 4:6 with water.

1.20 mol of ammonia, would produce the same amount of NO and

(1.20 . 6) / 4 = 1.8 moles of water

Sum of moles of products formed is:

1.2 + 1.8 = 3 moles

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.