A-level Chemistry/OCR (Salters)/The Steel Story
< A-level Chemistry < OCR (Salters)
Transition metal salts usually form coloured solutions. From left to right, aqueous solutions of:
* cobalt(II) nitrate, Co(NO3)2 (red)
* potassium dichromate(VI), K2Cr2O7 (orange)
* potassium chromate(VI), K2CrO4 (yellow)
* nickel(II) chloride, NiCl2 (green)
* copper(II) sulfate, CuSO4 (blue)
* potassium manganate(VII), KMnO4 (purple).
* cobalt(II) nitrate, Co(NO3)2 (red)
* potassium dichromate(VI), K2Cr2O7 (orange)
* potassium chromate(VI), K2CrO4 (yellow)
* nickel(II) chloride, NiCl2 (green)
* copper(II) sulfate, CuSO4 (blue)
* potassium manganate(VII), KMnO4 (purple).
The Steel Story is the ninth unit in the Salters Advanced Chemistry course.
Chemical Storylines sections
- SS1 What is steel?
- SS2 How is steel made?
- SS3 Rusting
- SS4 Recycling steel
- SS5 A closer look at the elements in steel
- SS6 Summary
Chemical Ideas sections
- 2.4 Electronic structure: sub-shells and orbitals (revision)
- 6.1 Light and electrons (revision)
- 6.7 Where does colour come from?
- 9.1 Oxidation and reduction (revision)
- 9.2 Redox reactions and electrode potentials
- 9.3 Predicting the direction of redox reactions
- 11.5 The d block: characteristics of transition elements
- 10.5 How do catalysts work? (revision)
- 11.6 The d block: complex formation
Activities
- SS1.1 How much manganese is there in a paper clip?
- SS1.2 A redox titration
- SS2.1 Why is blast furnace iron so impure?
- SS2.2 What changes occur during steelmaking?
- SS2.3 Getting the ‘heat balance’ right (Optional extension)
- SS2.4 How much aluminium do we need to add? (Optional extension)
- SS2.5 Which is the right steel for the job? (Optional extension)
- SS3.1 A simple redox reaction
- SS3.2 Simple electrochemical cells
- SS3.3 More electrochemical cells
- SS3.4 How does steel rust?
- SS3.5 Understanding redox reactions
- SS5.1 Investigating the oxidation states of vanadium
- SS5.2 How do transition metal ions act as catalysts?
- SS5.3 Looking at some transition metal complexes
- SS6 Check your notes on The Steel Story
External links
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