Mg + HCl ->MgCl2 + H2 How many liters of hydrogen gas is produced at 298 K and 0.940 atm if 4.00 molecules of Hydrochloric acid react with an excess amount of magnesium metal

A) 26.0 liters

B) 52.1 liters

C) 82.3 liters

D) 104 liters

What can be found in the ionosphere

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

Which statement about hf is true? it is zero for any compound in its standard state. it is positive when the bonds of the product store more energy than those of the reactants. it is negative when a compound forms from elements in their standard states. it is zero for any element that is in the liquid state.