How many grams of barium chloride are produced when 1.25 x 10^23 molecules of HCl reacts with barium?

What is the ima of the 1 st class lever in the graphic given? 2 3 0.5

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?

For the reaction shown, find the limiting reactant for each of the following initial amounts of reactants. 4al(s)+3o2(g)→2al2o3(s) a) 1 molal, 1 mol o2 b) 4 molal, 2.6 mol o2 c) 16 molal, 13 mol o2 d) 7.4 molal, 6.5 mol o2