In the reaction b+ k l+ h, if an additional b is added, the result will be

more l and h will be produced

more l will be required

more k will be produced

the reaction will slow down

1 is the answer to this problem

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.