Copy and Edit

Purifying and Testing Water

Description

gcse Chemistry Mind Map on Purifying and Testing Water, created by k m on 19/06/2013.
k m
Mind Map by k m, updated more than 1 year ago
k m
Created by k m almost 11 years ago
46
0
0

Resource summary

Purifying and Testing Water
  1. water
    1. lakes
      1. rivers
        1. reservoirs
          1. aquifiers
            1. wells
              1. bore holes
              2. uses
                1. drinking
                  1. washing
                    1. household jobs
                      1. industry
                        1. cooling
                          1. solvent
                            1. raw material
                          2. some parts of Britain: demand higher than supply
                          3. water treatment
                            1. to purify it
                              1. safe to drink
                              2. untreated contains
                                1. microbes
                                  1. pollutants
                                    1. insoluble particles
                                      1. dissolved salts and minerals
                                      2. process
                                        1. 1) sedimentation
                                          1. insoluble particles sink
                                          2. 2)filtration
                                            1. remove very fine particles
                                            2. 3) chlorination
                                              1. kill microorganisms
                                          3. water purification
                                            1. tap water contains soluble materials
                                              1. not removed in water treatment
                                              2. distilled
                                                1. lots of energy
                                                  1. expensive
                                                  2. huge amounts of energy would be needed to distil sea water
                                                    1. costly
                                                      1. expensive equipment
                                                        1. menas making drinking water from sea water is prohibited
                                                    2. pollution in water
                                                      1. nitrates
                                                        1. fertiliser
                                                        2. lead compunds
                                                          1. pesticides
                                                            1. spraying crops
                                                            2. difficult to remove
                                                            3. dissolved ions
                                                              1. dissolved ions of some salts: easy to identify
                                                                1. precipitation reactons
                                                                  1. insoluble solid from mixing 2 solutions
                                                                2. barium chloride
                                                                  1. detect sulfates
                                                                    1. form barium sulfate
                                                                      1. white precipitate
                                                                  2. silver nitrate
                                                                    1. detect halide ions
                                                                      1. chlorides
                                                                        1. white pecipitate
                                                                        2. bromides
                                                                          1. cream precipitate
                                                                          2. iodides
                                                                            1. pale yellow precipitate
                                                                      Show full summary Hide full summary

                                                                      Want to create your own Mind Maps for free with GoConqr? Learn more.

                                                                      Similar

                                                                      Electrolysis
                                                                      lisawinkler10
                                                                      Chemistry General Quiz - 2
                                                                      lauren_johncock
                                                                      Chemistry Quiz General -3
                                                                      lauren_johncock
                                                                      The Periodic Table
                                                                      asramanathan
                                                                      Ionic Bondic Flashcards.
                                                                      anjumn10
                                                                      Chemical Symbols
                                                                      Keera
                                                                      Acids, Bases and Salts
                                                                      asramanathan
                                                                      Acids and Bases
                                                                      Sarah Egan
                                                                      Using GoConqr to study science
                                                                      Sarah Egan
                                                                      Testing for ions
                                                                      Joshua Rees
                                                                      Acids and Bases
                                                                      silviaod119
                                                                      Browse Library