What is the chemical basis of the iodine test?

What epithelial tissue type lines most of the digestive tract? What structures secretes renin when blood pressure in the afferent arteriole drops? Which is the total number of atoms in a molecule of ch3oh? One way to show the number of valance electrons an atom has is with what? Does the atmosphere protect us from suns harmful rays? What Three Things can happen when a Chemical Reaction occur? What are organisms that get energy from other organisms called? How is a footprint measured? What A type of texture that can be seen but not felt? What is polythene rod made of? What does 871200 square feet equal per square on graph paper? What is ikolai bacteria? WHY would someone have a chip on their shoulder? Do molecules of solid lump of sugar move? Hertz cycle meter on a generator that is not showing a reading how can it be checked? When was ColorGraphics Weather Systems created? Gas forms when two liquids are mixed is that a chemical change? When you put an element in a flame you see different colors of light given off How why? These compose the larger class of angiosperms? What would you predict about the ionization energies of these elements?