The element sodium occurs naturally as a light solid with shiny metallic appearance. The diagram shows what will happen when a piece of pure sodium is placed in water. This indicates rat the properties of the element in the saw column on te periodic table as sodim have

Nitrogen dioxide decomposes according to the reaction 2 no2(g) ⇌ 2 no(g) + o2(g) where kp = 4.48 × 10−13 at a certain temperature. if 0.70 atm of no2 is added to a container and allowed to come to equilibrium, what are the equilibrium partial pressures of no(g) and o2(g)