What is the limiting reactant and what is the maximum mass of aluminum hydride that can be formed given 3.00 grams of hydrogen and 26.00 grams of aluminum ?

its first and third is your answer i did the qustion the fourth isnt right

може ли да зареждате повече информация, моля

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.