At 125oC, Kp = 0.25 for the reaction: NaHCO3 (s) ⇔ Na2CO3 (s) + CO2 (g) + H2O (g) A 1.00 L flask containing 10 g of NaHCO3 is evacuated and heated to 125oC. Calculate the partial pressures of CO2 and H2O after equilibrium is established.

Apure solvent has a vapor pressure the vapor pressure of a solution. a. equal to b. lower than c. higher than

Calculate the mass of silver needed to react with chlorine to produce 126g if silver chloride?

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.