Chemistry- air and water 0.0 / 5 ? ChemistryAir and waterIGCSEAQA Created by: Splash HeslinCreated on: 07-04-15 13:16 What is fractional distillation? Separates mixtures by heating in a big cylinder, they condense off at different heights (different boiling points) 1 of 11 Oxides Made by reacting with oxygen. 2 of 11 All aklali's are bases... ... but not all bases are alkali's. 3 of 11 Water treatment- Water filters: Removes calcium, magnesium, copper, reduces bacteria. 4 of 11 Water treatment- Desalination Makes water pure- boil water. 5 of 11 Water treatment- Fluoride Reduces cavities in teeth, causes white marks on teeth, reduces tooth decay. 6 of 11 Rust is? IRON oxide. 7 of 11 Cause of rust Air and water. 8 of 11 Preventing rust: Painting, oiling, plastic, grease, less reactive metal, or more reactive metal. 9 of 11 Hard water caused by Mg or Ca ions. 10 of 11 Hard water causes blockage in pipes, gross stuff in kettle. 11 of 11
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