HELP PRETTY PLEASE
this question is driving me nuts itd be awesome if someone helped

State the formula for density in words and mathematical symbols

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 is the maximum number of electrons that an atomic orbital can contain?