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I HAVE JUST STARTED A NEW PORTFOLIO & CAN'T FIND OUT HOW TO ENTER THE NUMBER OF SHARES FOR EACH ITEM. PLEASE HELP!! THANKS.? Is avogadro's number 6.022x10^23 mol/particles or particles/mol? 15x-3(3x+4)=8
what is the value of x? Find tan(x/2) given sin(x)=3/5 and 90<x<180? What volume of 4.90 M H2SO4 is needed to prepare 495.0 mL of a solution that is 0.540 M in H2SO4?