1. Labe el each compound as soluble or insoluble (2 points) a. CuS b. FeSO4 c. P
ID: 1028344 • Letter: 1
Question
1. Labe el each compound as soluble or insoluble (2 points) a. CuS b. FeSO4 c. PbCO 2. Circle which one of these reactions results in the formation of a precipitate. Write the precipitate in the blank space of that one reaction?(2 points) b. MgSO4 (aq)+CaS(aq) c. NaNO3 (aq) + MgSO4 (aq) d. LiNOs (aq)+ Na2 SO4 (aq) 3. What is the net ionic equation for the reaction between Pb(C2 H3 02)2 (aq) and KBr(aq)? (2 points) a. Pb(C2 H3 O2 )2 (aq)+ KBr(aq)--PbBr (s) + 2 KG H: O2 (aq) b. Pb2+ (aq) + 2 Br-(aq) PBn (s) c. K+ (aq)+C2 H3 O2-(aq) KC2Hs02 (s) d. Pb(C2 H3 O2 )2 (aq) + 2 KBr(aq) KC2 H3 O2 (s) + Pb Br2 (aq) acement or double-displacement? (2 points) a. AB A + B b. A+BAB c, A+BC AC + B d, AB + CD AD + CB Classify the following reaction as: synthesis, decomposition, single-displacement or double-displacement? (2 points) a. Na2O(s) + H2 0() 2 NaOH(aq) b. Ba (NOs)2 (aq)+ K2 So4 (aq) BaSO4(s) +2 KNOs (aq) c. 2 Al(s) + Fe2 O3 (s) Al2 O3 (s) + 2 Fe(1) d. 2H2 O2 (aq) 2 H20(I) + O2 (g) 5.Explanation / Answer
1.
A.CuS insoluble
b. FeSO4 soluble
c. PbCO3 insoluble
d. NH4Cl soluble
2.MgSO4(aq) + CaS(aq) ----------> MgS(s) + CaSO4(aq)
MgS is precipitate
3.
Pb(C2H3O2)2(aq) + 2KBr(aq) ---------> PbBr2(s) + 2C2H3O2(aq)
Pb^2+ (aq) +2(C2H3O2)^-(aq) + 2K^+(aq) +2Br^-(aq) ---------> PbBr2(s) + 2K^+ (aq) +2C2H3O2^-(aq)
Pb^2+ (aq) +2Br^-(aq) ---------> PbBr2(s) net ionic equation
b. Pb^2+ (aq) +2Br^-(aq) ---------> PbBr2(s) net ionic equation
4.
AB+CD----------> AD + CB
5.
Na2O(s) + H2O(l) ----------> 2NaOH (aq) synthesis
b. Ba(NO3)2(aq) + K2So4(aq) ----------> BaSO4(s) + 2KNO3(aq) double -dispalcement
c, 2Al(s) + Fe2O3(s) --------> Al2O3(s) + 2Fe(l) single displacement
d. 2H2O2(aq) ----------> 2H2O(l) + O2(g) decomposition
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