A pile of leaves is lit on fire, and then covered completely with a fire blanket so that the fire goes out. Identify the limiting reactant in this situation.

The limiting reactant in this question is oxygen, O₂.

Explanation:

The equation  for fire is

Fuel + O₂ → CO₂ + H₂O

In the above equation and from the question we have

Fuel = Pile of leaves

O₂ = Oxygen in the air

When the pile of leaves is lit on fire and the fire is then covered with a fire blanket put out the fire, the blanket limits access of the fire to atmospheric oxygen which limits the amount of oxygen present which therefore limits the amount of CO₂ and H₂O that can be produced.

Hence the covering of the fire by the blanket limits the quantity of oxygen which limits the reaction. Hence oxygen is the limiting reactant.

he uptake of drugs from the intestine is often strongly influenced by diffusion. for example, consider a water-insoluble steroid for treating inflammation that is solubilized in aggregates of detergent molecules, called micelles. these micelles, aggregates of 80 soap molecules, have a molecular weight of 24,000, a diameter of 2.6 nm, and a charge of -27. the positively charge ions (counterions) in this system are na".