Water as a Solvent Outcomes

Question	Answer
Examples of solids in suspension of seawater?	Sand suspended in seawater.
Examples of solids suspended in rivers/lakes?	Fish, yabbies, bacteria and dirt suspended in rivers/lakes.
Examples of solutes dissolved in seawater/rivers/lakes?	Oxygen dissolved in seawater.
Examples of solutes dissolved in pools?	Chlorine andd other treatment chemicals dissolved in pool water.
Potable water sources in rural areas?	Treated groundwater/wastewater from factories outside of area.
Reasons for desalination?	NSW is in drought, so state needs as much water as it can get. However, it is expensive and is rarely used right now.
Steps of water treatment?	Flocculation - fine solid particles are removed, some from outside chemicals to clump them together. Filtration - pumped through filters to remove any remaining particles. Sterilisation - chlorine added to kill micro-organisms in water. Balancing pH - measure of acidity is changed so that water is not acid or alkaline. Fluoridation - fluorine added to reduce chance of tooth decay

Resource summary

	Created by Sean Sacriz over 5 years ago