17.) On the right is a proposed mechanism for a reaction. The experimentally determined rate law for the reaction below is rate = k[H2O2][I– ]. a.) Identify all intermediates included in this mechanism.
1.) H2O2 + I– ↓ HOI + OH– slow
2.) OH– + H+ ↓ H2O fast
3.) HOI + H+ + I– ↓ I2 + H2O fast
net rxn: H2O2 + 2 H+ + 2 I–↓ I2 + 2 H2O
b.) Write the rate law that this mechanism predicts for this reaction.

answer: atomic mass was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

explanation:

originally atomic mass was used to arrange elements on the periodic table from left to right in a row. each column then shows similar properties of elements of a group.

in modern periodic table, the atoms are arranged in increasing atomic number. as atomic number represents the number of protons in an atom which is unique for every atom.