How does an incomplete reaction occur in steam distillation and what does it have to do with equilibrium?

The wave shown on the electromagnetic spectrum disturb the medium it passes through a)different frequency. b)the same frequency .

What is the mass of 2.00 l of an intravenous glucose solution with a density of 1.15 g/ml?

Alidded glass container is filled with a colored gas. after a period of time, it is observed that the gas is uniformly spread throughout the box and that the movement has slowed considerably. next, a warm iron plate is carefully placed under the box. why is there resumed movement of the gas in the container?