How many Molecules and atoms of the product 2H2O+ O2

What methods could you use to solubilize calcium carbonate

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?

Which of the following is described by the equation h2o(s)+ heat=h2o(i) a freezing melting condensing evaporating