Carbonic acid, H2CO3 , has two acidic hydrogens. A solution containing an unknown concentration of carbonic acid is titrated with potassium hydroxide. It requires 24.2 mL of 3.940 M KOH solution to titrate both acidic protons in 54.1 mL of the carbonic acid solution. Write a balanced net ionic equation for the neutralization reaction. Include physical states.

answerleaving cheese out to get moldy;

i belive it is water

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.