what equation shows the correct product and obeys conservation of mass for the reaction between barium and…

what equation shows the correct product and obeys conservation of mass for the reaction between barium and iodine?\n$ba + i_{2} \\rightarrow$\nhint: remember to balance the charges.\n$ba + i \\rightarrow bai$\n$ba + i_{2} \\rightarrow bai_{2}$\n$2ba + i_{2} \\rightarrow 2bai$

what equation shows the correct product and obeys conservation of mass for the reaction between barium and iodine?\n$ba + i_{2} \\rightarrow$\nhint: remember to balance the charges.\n$ba + i \\rightarrow bai$\n$ba + i_{2} \\rightarrow bai_{2}$\n$2ba + i_{2} \\rightarrow 2bai$

Answer

Explanation:

Step1: Determine ionic charges

Barium ($Ba$) is in Group 2 ($+2$ charge); Iodine ($I$) is in Group 17 ($-1$ charge).

Step2: Formulate the product

To balance charges, two $I^{-}$ ions combine with one $Ba^{2+}$ ion. $$Ba^{2+} + 2I^{-} \rightarrow BaI_{2}$$

Step3: Balance the chemical equation

Ensure the number of atoms on both sides is equal. $$Ba + I_{2} \rightarrow BaI_{2}$$

Answer:

$Ba + I_{2} \rightarrow BaI_{2}$