Question

Which chemical symbols will complete the equation for this decomposition reaction? 2KI->

Answer 1

2KI --> 2K + I2

I2 is becasue Iodine is an element that cannot stand alone, and therefore bonds with its self.

Answer 2

Answer: The chemical symbols completing the equation is
`K\text{ and }I_2`

Step-by-step explanation:

Decomposition reaction is defined as the reaction in which a single compound gets decomposed to two or more compounds.

General equation representing decomposition reaction follows:

`AB\rightarrow A+B`

The chemical equation for the decomposition of potassium iodide follows:

`2KI\rightarrow 2K+I_2`

By Stoichiometry of the reaction:

2 moles of potassium iodide decomposes to form 2 moles of potassium element and 1 mole of iodine gas.

Hence, the chemical symbols completing the equation are
`K\text{ and }I_2`