3. At 25°C, H2O(l) reached equilibrium according to the equation, H2O(1) =
H2O (g)
Calculate Kp and Kc for the reaction. [vapour pressure of water at 25°C = 23.8 torr]

Inside a flashbulb, oxygen surrounds a thin coil of magnesium. when the flashbulb is set off, a chemical reaction takes place in which magnesium combines with oxygen to form magnesium oxide. which of the chemical equations matches the reaction above? a. mg + o2 mgo2 + energy b. 2mg + o mg2o + energy c. 2mg + o2 2mgo + energy d. mg + o mgo + energy