How many moles are there in 224cm3 of oxygen at s. t.p

all eukaryotic cell have mitochondria : )

28528289 29823282 8298232 39858

the answer is a! (2.9 x 10^-18 j) hope i could someone. : )

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.