Which of the following solutions is a good buffer system? a. A solution that is 0.10 M HCN and 0.10 M KI
b. A solution that is 0.10 M H2CO3 and 0.10 M LiHCO3
c. A solution that is 0.10 M KCl and 0.10 M HBr
d. A solution that is 0.10 M NaOH and 0.10 M HNO2
e. A solution that is 0.10 M H2SO4 and 0.10 M CsHSO4

c. is the answer

by love gaming

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.