The first set of calculations in determining an empirical formula from masses of elements produce that subscripts of 1.67 and 1.00 . What do you need to do to find the actual subscripts?

•hydration •dissociation •dissolving which one goes to which

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?

Analyze the reaction to determine whether the reaction is exothermic or endothermic. explain your reasoning.