H2+i2= 2hi+3 kcal based on the reaction given above, as the temperature decreases, the formation of the reactants will: a. decrease b. increase c. remained consistent d. indeterminate

Decrease

Explanation:
The reaction given is an exothermic reaction. This means that the heat is a product.
At equilibrium, the rate of forward reaction is equal to the rate of backward reaction.
Now, decreasing the temperature means that the concentration of the products will decrease. 
As a result, the equilibrium will shift to the right leading to the formation of more products in order to reach equilibrium again.
This means that the formation of the reactants will decrease.

Hope this helps :)

A. it acts on all objects all the time. mark as brainliesg

Ethene molecular fórmula= c2h4molecular weight = 29.046g/molhope it : )