N2H4 + N204 → H2O + N2 When 8.0 g of N H4 (with a molar mass of approximately 32 g/mol) and 92 g of N204 (with a molar mass of
approximately 92 g/mol) are mixed together and react according to the equation above, what is the maximum mass of
H2O that can be produced? Balance the equation first!

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.