Chromium [Cr2O7]2-

Chad Astbury
Mind Map by Chad Astbury, updated more than 1 year ago
Chad Astbury
Created by Chad Astbury over 6 years ago


A quick overview of the reactions of Chromium

Resource summary

Chromium [Cr2O7]2-
  1. Orange Solution
    1. <-----Acid Alkali----->
      1. [CrO4]2-
        1. Yellow Solution
          1. <-----H2O2
            1. [Cr(OH)6]3-
              1. Green Solution
                1. XS NaOH----->
                  1. Cr(H2O)3(OH)3
                    1. Green Precipitate
          2. Zn + HCl OR Fe2+ acidified with HCl
            1. [Cr(H2O)6]3+
              1. Green Solution
                1. XS NH3
                  1. [Cr(NH3)6]3+
                    1. Purple Solution
                  2. <-----O2 Zinc and HCl----->
                    1. [Cr(H2O)6]2+
                      1. Blue Solution
                    2. Limited NaOH/NH3
                      1. ------->
                  Show full summary Hide full summary


                  GCSE - AQA: C1.1 The Fundamental Ideas in Chemistry
                  Olly Okeniyi
                  GCSE AQA Chemistry 1 Fuels & The Environment
                  Lilac Potato
                  Chemistry 6 Extracting Vegetable Oil Core GCSE AQA
                  Chloe Roberts
                  GCSE AQA Chemistry 2 Salts & Electrolysis
                  Lilac Potato
                  Crude Oils and others quiz
                  Dale George
                  Chemistry paper 1 summary
                  Paige Louise
                  Enzymes and Respiration
                  I Turner
                  GCSE AQA Biology - Unit 2
                  James Jolliffe
                  Using GoConqr to study science
                  Sarah Egan
                  Biology AQA 3.2.5 Mitosis
                  Acids and Bases
                  Sarah Egan