Part B- Please answer the following questions (50 points) 9- What is a.docx

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Part B: Please answer the following questions (50 points) 9. What is a metathesis reaction. Explain with an example (10 points)? 10. Explain how would you determine the density of 20 mL of an unknown liquid (10 points 11. How can you distinguish between the gases H2 and NO2 (5 points)? 12. What is sublimation and where did you use in the experiments conducted (5 points)? 13. How do decantation and filtration differ? Which should be faster? (5 points) 14. Which has greater volume, 10 g of hexane or 10 g of toluene? What is the volume of e points)? 15. Write equation for the decomposition of H2COs (aq) and H2SOs (aq) (5 points)? Solution 9 .Sol:- Metathesis reaction :- Metathesis reaction also known as double displacement reaction is a chemical reaction which involves the exchange of bonds between two reacting species ( with no exchange in oxiadtion number ) . For example :- Precipitaion Reaction between NaCl(aq) and NaNO 3 is : NaCl (aq) + AgNO 3 (aq) -------------> AgCl (s) + NaNO 3 (aq) In this reaction cation and anion exchange their parteners but the oxidation number of all species remains same from reactants to products . .

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