1. How many Liters(L) of Oxygen (O2) will be formed when 4 moles of potassium oxide reacts with oxygen according to the following reaction:
4K + 02 → 2 KO

How are evaporation and sublimation similar? a both involve the formation of a gas. b both release energy to the surroundings. c both take place throughout a solid. d both take place at the surface of a liquid.

How do you know when a chemical reaction has occurred

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?