REPORT FOR EXPERIMENT 10 (continued) EXPE QUESTIONS AND PROBLEMS Quan 1. The for

Question

REPORT FOR EXPERIMENT 10 (continued) EXPE QUESTIONS AND PROBLEMS Quan 1. The formation of what three classes of substances caused double displacement to occur in this experiment? MATE Ring 400-m EQUI Balar CHE Solie 2. Write the equation for the decomposition of sulfurous acid. in Appendix 2, predict whether a double displacement reaction will occur in each exs ple below. If reaction will oecur, complete and balance the equation, properly indicati gases and preeipitates. If you believe no reaction will occur, write "no reaction" as the 3. Using three criteria for double displacement reactions,together with the Solubility Table Lab DIS In t right-hand side of the equation. All reactants are in aqueous solution (a) KS + CuSO4 (b) NH,OH + H,co,- oth (e) KOH + NH,CI d) NaC,H,O,+HCI Fu for ex (g BiCl,+ NaOH_ -94-

Explanation / Answer

Solved the first two problems and third problem few parts, please post multiple question to get the remaining answers

Q1) For the double displacement reaction, three classes are

a) Formation of Precipitate

b) Evolution of gas in the reaction

c) Slightly ionized compound that can be detected with the change in color of the solution

Q2)

Decomposition of sulfrous acid (H2SO3)

H2SO3(aq) ---------- H2O(l) + SO2(g)

Q3)

a) K2S + CuSO4 (No reaction)

b) (No reaction)

c) KOH + NH4Cl ----- KCl + NH3 + H2O

Gas evolved = NH3

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