Provide the structure of the major organic product which results when PhCO2CH2CH3 and CH3CH2CO2CH2CH3 are heated in the presence of sodium ethoxide and the compound generated is subsequently treated with cold, dilute acid.

the answer for sodium is 0.186

the answer for rubidium is 0.251

gas

explanation:

smoke is the matter of a gas

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.