Identity of crystals 4 Temperature of filtrate 5 Crystal shape of second batch 6

Question

Identity of crystals 4 Temperature of filtrate 5 Crystal shape of second batch 6. Identity of sccond batch of crystals 7. Crystal shape of third batch 8. Identity of third batch of crystals QUESTIONS 1. Which of the following reactions are metathesis reactions? (a) (b) (c) (d) 2KClos-2Kci +302 Cu(NO3 )2 + Zn- Cu + Zn(No,); Baco, + 2 HCI_ BaCl2 + H2O +CO2 Na2Co, + Cuso, Na2SO4 + Cuco, 2a. How many grams of each of the following substances will dissolve in 100 mL. of cold water? Consult a handbook or the Internet and cite your source. Cello) RaSO P(NO) (NH)Sco a gram-per-100 ml. basis? Mn2. The addition of HBr causes a precipitate to form. After the precipitate is separated by filtration, H,sO is added to the supernatant liquid, and another precipitate forms. This precipitate is separated by filtration, and a solution of NaOH is added to the supernatant liquid until it is strongly alkaline. No precipitate is formed. Which ions are present in each of the precipitates? Which cations are not present in the original solution? 3. Suppose you have a solution that might contain any or all of the following cations: Cu". Ag". Ba, and Write balanced net ionic equations for the reactions, if any, that occur betwcen (a) Fo K,CO, (ay) and Cu(NO, ylagh (c) FeNO, lag) and Cay) and (d) Bio, a) b) c)

Explanation / Answer

Ans 1 : c and d

Metathesis reactions are also called double decomposition reactions, in which the positive and negative ions exchange their partners.

Reaction a is decomposition reaction and reaction b is a single replacement reaction.

C and D are metathesis reactions here.

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