Explain the following on the basis of the behavior of atoms and/or ions.

Cooking with hot water is faster in a pressure cooker than in an open pan.
Salt is used on icy roads.
Melted sea ice from the Arctic Ocean produces fresh water. (dry ice) does not have a normal boiling point under normal atmospheric conditions, even though is a liquid in fire extinguishers.

A- The water boils when you close the lid of the saucepan since the pressure of the water vapor increases, this condenser generates more pressure and the excitation of the electrons of the water molecules is greater, therefore its boiling is reached in less weather.

B-the salt-water mixture forms a solution that has its freezing point lower than pure water.

C- Sea ice produces fresh water in its liquid stage since during the certain temperature increase it provided sales evaporate.

D-Carbon dioxide (CO2) in solid state is called dry ice or carbon dioxide snow. It receives this name because, despite being similar to normal ice or snow due to its appearance and temperature, when it sublimes it leaves no residue of moisture because its base is not water and its natural state is gaseous. Even at low ambient temperatures, it has a sublimation temperature of -78.5 ° C (at a pressure atmosphere)

Explanation:

These examples express the different manifestations of different situations where the water molecule is found and how it reacts in different ways to salty media, high temperatures, low temperatures and variations in the molecule such as dry ice.