Which of the following coefficients are needed to balance the combustion reaction of ethanol?
a.2,3,3
b.4,2,3
c.2,3,2
d.3,2,3

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?