A student has a test tube containing a layer of water and a layer of hexane (C6H14). A solid sample of KI is introduced into the test tube, and the contents are carefully stirred. The Iis converted into I3 - , which is a linear ion. In which layer would the I3 - concentration be higher

Aqueous (water) layer

Explanation:

If water and hexane are mixed, the to liquids separate into two immiscible layers; an organic layer and an aqueous layer.

The organic layer will remain at the top, while the aqueous layer will remain below.

Ions can mostly be found in the aqueous layer, hence the aqueous (water) layer will have a higher concentration of the I3^- ion.

2h2o2--> 2h2o + o2

this reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

add 2 molecules of hydrogen peroxide and 2 molecules of water. since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

this may not be entirely correct but let me know.