Riddles: Shortcut to remarkable reactions

• reaction between thiocyanate and nitrite

• reaction between hydroxide and peroxodisulfate

• mixed valency coordination complex of copper (I) and copper (II)

• oxidation of thiocyanate by chlorine

• coordination complex of nitrogen dioxide and copper (II)

• chloride, bromide and nitrite in acidic environment

• copper (II) and thiosulfate

• coordination complex of iodide and sulphur dioxide

• fluoro complex of titanium, mixed valency complex of titanium (III/IV) 

• reaction between NOx-gases and cyanide 

• copper (II) chloride and sulphuric acid

• dissolving molybdenum in nitric acid: formation of strange red powder

• reduction of dichromate with hydroxyl ammonium ion

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