Final answer:
The balanced chemical equation for the reaction of strontium nitrate with potassium iodate is Sr(NO₃)₂ + 2 KIO₃ → Sr(IO₃)₂ + 2 KNO₃, which corresponds to option b) in the provided choices.
Step-by-step explanation:
To balance the chemical equation for the reaction of strontium nitrate with potassium iodate, we first need to identify the proper stoichiometry that ensures the number of each type of atom on the reactants side is the same as on the products side. The correct balanced equation for the reaction is:
Sr(NO₃)₂ + 2 KIO₃ → Sr(IO₃)₂ + 2 KNO₃
This corresponds to option b). We can check this by counting the atoms of each element on both sides of the equation:
Strontium (Sr): 1 atom on both sides.
Nitrogen (N): 2 atoms on both sides (2 in the Sr(NO₃)₂ reactant and 2 in the 2 KNO₃ products).
Oxygen (O): 12 atoms on both sides (6 from Sr(NO₃)₂ and 6 from the 2 KIO₃ for the reactants; 6 from Sr(IO₃)₂ and 6 from the 2 KNO₃ for the products).
Potassium (K): 2 atoms on both sides (2 from the 2 KIO₃ reactants and 2 from the 2 KNO₃ products).
Iodate (IO₃): 2 formula units on both sides.
Therefore, option b) is the balanced chemical equation.