Asmall amount of a solid unknown compound was placed into a test tube containing isopropanol. the solid floats on top of the liquid isopropanol. is this unknown compound considered to be soluble or insoluble?

It is insoluble

Explanation:

Solubility and floatability are different concepts:

Solubility depends of the polarity and chemical characteristics of the solute and solvent.  

Floatability depends of the density and volume of the solid, and the density of the liquid it's in.

Given that the unknown solid didn't disolve (you can see it on top of the liquid), it is insoluble in isopropanol.

practical process described pest part of scientific investigation.

because practical knowledge is powerful then therotical knowledge.

answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.