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Stress Pattern

Number of Syllables

Primary Stress

I ron (More accurately produced like "I earn.")

2

first

Suggested exercises

1.  A student who has learned that metals generally look shiny and 'metallic' asks why the metal part of the hammer in the picture is reddish-brown and rather powdery. Could it be because the metal is steel and not pure iron? Help him.
F

Useful words

rust
iron(III) oxide
moisture
oxidation
slow
even stainless steel can rust
F

2. A student who knows that rust is red and hemoglobin is red asks if all iron compounds are red. What do you answer?
F

iron(II) versus iron(III)
nature of the ligands
ligand field theory
take more advanced inorganic chemistry
counterexamples
ferrous ammonium sulfate
ferric oxalate
F

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