Question

Explain why some electrolyte solutions are strongly conducting, whereas others are weakly conducting. 4.2. Def fine the terms strong electrolyte and weak electrolyte. Give an example of each 4.3. Ex plain the terms soluble and insoluble. Use the solubility rules to write the formula of an insoluble ionic compound. 4.4. What are the advantages and disadvantages of using a molecular equation to represent an i reaction? 4.5. What is a spectator ion? IlIlustrate with a complete ionic reaction 4.6. What is a net ionic equation? What is the value in using a net ionic equation? Give an example. 4.7. What are the major types of chemical reactions? Give a brief description and an example of eaclh 4.8. Describe in words how you would prepare pure crystalline AgCI and NaNO, from solid AgNO, and solid NaCI. 4.9. Give an example of a neutralization reaction. Label the acid, base, and salt. 4.10. Give an example of a polyprotic acid and write equations for the successive neutralizations of the acidic hydrogen atoms of the acid molecule to produce a series of salts. 4.11. Why must oxidation and reduction occur together in a reaction? 4.12. Give an example of a displacement reaction. What is the oxidizing agent? What is the reducing agent? 4.7 4.7 4.13. Why is the product of molar concentration and volume constant for a dilution problem? 4.7 rec 4.14. Describe how the amount of sodium hydroxide in a mixture can be determined by titration with hydrochloric acid of known molarity 4.15. What is the net ionic equation for the following molecular equation? 4. 0. HF (aq)+ KOH (ag)> KF (a)+ H:O () ar Hydrofluoric acid, HF, is a molecular substance and a weak electrolyte. 4.16. An aqueous sodium hydroxide solution mixed with an aqueous magnesium nitrate solut which of the following products? a. magnesium hydroxide(aq) b. magnesium dihydroxide(s) c. magnesium hydroxide(s) d. dimagnesium hydroxide(s) e. sodium nitrate()) 4.17. Which of the following compounds would produce the highest concentration of Cr ions when 0.10 mol of each is placed in separate beakers containing equal volumes of water? a. NaCI b. PbCls c. HCIO4 d. MgCl2 e. HC1 4.18. In an aqueous 0.10 M HNO, solution (HNO, is a weak electrolyte), which of the following would you expect to find in the highest concentration? a. Ho'1 b. NO2 c. H d. HNO2 e OH

Answer 1

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