you mix 0.6L of a 0.2% v/v concentration of drug E with 1.2L of a 0.5% v/v concentration of drug E. what will the final % concentration be?

the objects have the same charge is correct.

nathan lee

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.