117. Solving a chemistry problem
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Product description
- Potassium thiocyanate acted on solutions of salts: (NH4)2SO4 ⋅ ⋅ Fe2(SO4)3 and 3KCN ⋅ Fe(CN)3. In the first case, coloring from Fe(CNS)3 appeared, but not in the second case. Indicate which of the given salts is complex and which is double. How do they dissociate? The formula of potassium thiocyanate is KCNS.
Additional information
If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.