The Hill system (or Hill notation) is a system of writing empirical chemical formulas, molecular chemical formulas and components of a condensed formula such that the number of carbon atoms in a molecule is indicated first, the number of hydrogen atoms next, and then the number of all other chemical elements subsequently, in alphabetical order of the chemical symbols.
Iodine clock reaction. The iodine clock reaction (STd3) is a classical chemical clock demonstration experiment to display chemical kinetics in action; it was discovered by Hans Heinrich Landolt in 1886. Two colourless solutions are mixed and at first there is no visible reaction.
Iodoform Test. A positive reaction with sodium hydroxide and iodine as reagents produce iodoform, which is a substance that is pale yellow in colour. Iodoform occurs as solid at ordinary room temperature because of three iodine atoms that are present in the molecule resulting in an increase in the molar mass.ormation of haloform as a result of a chemical reaction involving the methyl ketone halogenation is a haloform reaction. Haloform reaction is used for the production of iodoform (CHI 3). I like to share this Escape Velocity Formula with you all through my article.