When you set a pot of tap water on the stove to boil, you'll often see bubbles start to form well before boiling temperature is ever reached. explain this observation.
1. these initial bubbles are the gases that were dissolved in the water coming out of solution. the solubility of gases in water decreases with increasing temperature.
2. they are very minute pockets of water in the gaseous phase. when they get large enough, the water will boil as this gas escapes.
3. these bubbles are formed as the surrounding gases from the air dissolve into the water as it is heated.
4. these are dissolved salts heating up and escaping from the water.

Which of the following represents an upside-down image?

When temperature of a substance increases, of its particles increase resulting in more between particles. real world applications of thermal expansion absolute zero (-273 degrees c) is the lowest possible temperature on the kelvin scale. it is a measure of where a substance has no kinetic energy. heat is a process of the . energy flows spontaneously from a object to a until equilibrium is reached. heat is measured in heat is transferred throughis a method of heat transfer that occurs between particles of matter that are in direct contact with each other. are poor conductors that impede / reduce the rate of heat transfer. is a method of heat transfer that occurs in fluids (non-solids) by means of currents. real world application of convectiona method of heat transfer through electromagnetic waves. when energy moves from one object to another inside a closed system, no energy is or in the system in the transaction. systems will spontaneously move to a state of organized energy or high disorder over time called

The air that we breath is made mostly of which gaseous molecule