How many liters of hydrogen gas would be produced by the complete
reaction of 2.93 g of Al at STP according to the followingreaction? Remember 1 mol of an ideal gas
has a volume of 22.4 L at STP
2Al(s)+6HCl(aq)→2AlCl₃(aq)+3H₂(g)

Which factor is likely to impact the possible number of compounds ?

Iwould appreciate if someone could me.

Calcium carbonate decomposes at high temperatures to give calcium oxide and carbon dioxide as shown below. caco3(s) cao(s) + co2(g) the kp for this reaction is 1.16 at 800°c. a 5.00 l vessel containing 10.0 g of caco3(s) was evacuated to remove the air, sealed, and then heated to 800°c. ignoring the volume occupied by the solid, what will be the mass of the solid in the vessel once equilibrium is reached?