18P 18E 16N Using the provided PEN number what must be the mass of the element described?

Select the correct answer. given: 2libr + ba → babr2 + 2li in this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced? a. 1.18 mol b. 2.37 mol c. 4.73 mol d. 16.4 mol e. 32.9 mol

What diagram shows the ionic compound of magnesium oxide

Connect the whole numbers on the periodic table to indicate what they represent?