Using the Ideal Gas Law, PV = nRT, where R=0.0821 L atm/mol K, calculate the volume in liters of oxygen produced by the catalytic decomposition of 25.5 g potassium chlorate according to the following reaction. The oxygen is collected is collected at 2.22 atm and 25.44 degrees Celcius. Express your answer to the correct number of significant figures. Be sure to show all steps completed to arrive at the answer. Equation: 2KCIO3(s) >>> 2KCI(s) + 3O2(g)

the electron configuration that you gave me has 16 electrons ergo it has 16 protons ergo it is the element sulfur.

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.