Using the ideal gas law, find the number of moles of Argon gas in a 5L tank at 20C and 3160kPa of internal pressure. R = 8.314 (kPa xL / (Kx mol))

O 3 mol
O 4.1 mol
O 6.5 mol
O 20 mol
O 2436 mol

Which of the following is the correct formula for copper (i) sulfate trihydrate? cuso4 · 3h2o cuso4(h2o)3 cu2so4(h2o)3 cu2so4 · 3h2o

Which element is least likely to undergo a chemical reaction

Insoluble sulfide compounds are generally black in color. which of the following combinations could yield a black precipitate? check all that apply. na2s(aq)+kcl(aq) li2s(aq)+pb(no3)2(aq) pb(clo3)2(aq)+nano3(aq) agno3(aq)+kcl(aq) k2s(aq)+sn(no3)4(aq)