This balanced equation shows the reaction of sodium hydroxide and sulfuric acid: 2NaOH + H2SO4 → Na2SO4 + 2H2O. In a laboratory experiment, a student mixes 355 grams of sulfuric acid with an excess of sodium hydroxide. What is the theoretical mass of sodium sulfate produced? Refer to the periodic table and the polyatomic ion resource. The theoretical mass of sodium sulfate is grams.

false

because it does not have the potential to be entirely used up

there are two significant figures.

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.