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BCA Method in Stoichiometry Problems: Visual Organiser




Resources: http://is.gd/stoichio   Read more about this method: http://blog.abud.me/search?q=bca+method
BCA Method in Stoichiometry Problems: Visual Organiser

The Periodic Table of the Elements                                                                                +1
                                                                                                                        Cations (positive)
                                                                                                                               +2          +3      -3
                                                                                                                                                         Anions (negative)
                                                                                                                                                                -2         -1
Always use this version of the periodic table in your work.                                                       H
                                                                                                                    +
                                                                                                                              Mg
                                                                                                                                 2+
                                                                                                                                         Al
                                                                                                                                           3+
                                                                                                                                                  N
                                                                                                                                                    3-
                                                                                                                                                                O
                                                                                                                                                                  2-
                                                                                                                                                                          Cl
                                                                                                                                                                                -
                                                                                                                    +            2+         3+      3-           2-            -
                                                                                                                  Li          Ca         Fe       P             S         Br
                                          Ions form when electrons are lost (cations – overall positive) or      Na
                                                                                                                     +
                                                                                                                              Fe
                                                                                                                                2+
                                                                                                                                                 PO4
                                                                                                                                                      3-
                                                                                                                                                               CO3
                                                                                                                                                                    2-
                                                                                                                                                                           I
                                                                                                                                                                             -
                                                                                                                    +            2+                                2-             -
                                                   when electrons are gained (anions – overall negative).         K           Cu                               SO4       NO3
                                                                                                                      +          2+                                                 -
                                                                                                                 NH4          Zn                                         HCO3
                                                                                                                                 2+                                              -
                                                                                                                              Pb                                          OH




                                                                                                            Source: IBDP Chemistry subject guide and exam data booklet.

Resources: http://is.gd/stoichio   Read more about this method: http://blog.abud.me/search?q=bca+method

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BCA Method for Stoichiometry: Visual Organiser

  • 1. BCA Method in Stoichiometry Problems: Visual Organiser Resources: http://is.gd/stoichio Read more about this method: http://blog.abud.me/search?q=bca+method
  • 2. BCA Method in Stoichiometry Problems: Visual Organiser The Periodic Table of the Elements +1 Cations (positive) +2 +3 -3 Anions (negative) -2 -1 Always use this version of the periodic table in your work. H + Mg 2+ Al 3+ N 3- O 2- Cl - + 2+ 3+ 3- 2- - Li Ca Fe P S Br Ions form when electrons are lost (cations – overall positive) or Na + Fe 2+ PO4 3- CO3 2- I - + 2+ 2- - when electrons are gained (anions – overall negative). K Cu SO4 NO3 + 2+ - NH4 Zn HCO3 2+ - Pb OH Source: IBDP Chemistry subject guide and exam data booklet. Resources: http://is.gd/stoichio Read more about this method: http://blog.abud.me/search?q=bca+method