Flashcards
Water as a Solvent Outcomes
Cards in this deck (7)
- 1Examples of solids in suspension of seawater?Sand suspended in seawater.
- 2Examples of solids suspended in rivers/lakes?Fish, yabbies, bacteria and dirt suspended in rivers/lakes.
- 3Examples of solutes dissolved in seawater/rivers/lakes?Oxygen dissolved in seawater.
- 4Examples of solutes dissolved in pools?Chlorine andd other treatment chemicals dissolved in pool water.
- 5Potable water sources in rural areas?Treated groundwater/wastewater from factories outside of area.
- 6Reasons 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. - 7Steps 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