04 Jul Respond to two dicussion post below ******Physical Science class****

Original questionWhy can’t we destroy bothersome pollutants by just dissolving them in the ocean?Respond to two discussion post below Minimum 60 words eachPost 1The reason why we can’t destroy bothersome pollutants by just dissolving them in the ocean is that if we dissolved them into the ocean, it would go up into the atmosphere via the water cycle through evaporation. While some of the pollutants go up into the atmosphere through evaporation, the majority of it remains in the oceans and settles in the deeps of the ocean bed. Another concern is the ecosystem of marine life and the ecosystem of marine life. Some pollutants can contain chemicals such as Co2, Sulphur, Co, So2, So3, and other products. By mixing certain amounts of these compounds can make a reaction within the water producing acids.Post 2There are several reasons we can’t destroy pollutants by dissolving them in the ocean.  One is that water does not dissolve all substances.  Further, the polar nature of the water molecules causes them to interact with an ionic substance such as salt.  If the attraction of the polar water molecules overcomes the attraction between the ions in the crystal the salt dissolves, also known as ion-dipole interaction.  Two polar substances tend to dissolve in each other, and two nonpolar substances tend to mix well.  In general like dissolves like.  Polar substances tend to mix well in other polar substances.  Nonpolar substance tends to mix well with other nonpolar substances, but unlike substances to not tend to mix well.  The polar molecules tend to gather together and exclude the nonpolar molecules.  When two liquids can be mixed together, they are miscible and form a homogeneous solution (you cannot distinguish the two liquids anymore).  When they are immiscible they cannot be mixed and will form separate layers which is a heterogeneous solution.  Salt ions attract water molecules much more strongly than other less polar substances because they are charged electrically.  This means that if there is a lot of salt, such as in our oceans, the water molecules will bond to the salt ions, leaving less or none to bond with less polar molecules.  This is called salting out.  Basically the salt keeps other substances from dissolving.  Salting out is even used by chemists to purify things like proteins or to extract liquids out of a solution.  Therefore, not all substances would even be soluble in our oceans.  From an ecological perspective, it would be immoral to dump pollutants into the ocean.  Pollutants can destroy fragile ocean ecosystems and contaminate marine animals, fish and other ocean dwellers.  Once introduced, these pollutants are very difficult to eliminate from our oceans. Pollutants and chemicals destroy the oxygen content of the water that leads to havoc on the delicate ocean ecosystem.   Also many of the most common pollutants contain materials that are not soluble in water such as mercury, cadmium, nickel, crude oil etc.  When you consider that salt, present in the ocean, already has formed a bond with the water, it is less soluble than just plain water as well.  It would be disastrous to use our oceans as a dumping ground for waste.