What gas must be present for burning to happen

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?

When water dissolves sugar, which process is not involved? o dissociation o hydration o surface area of the solute increases sa

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)