1 test

1 How can the pH of the medium change when solid sodium hydroxide NaOH is dissolved in water?
2. How does the addition of NaCN to the equilibrium system affect the equilibrium shift
HCN=HCN-
3. What chemical compound belongs to the category of strong electrolytes?
4. The formula of which chemical compound should be written in ionic form when compiling ion-molecular reaction equations?
5. What chemical compound will iron(II) sulfate (FeSO4) react with?

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