1) Which is a spectator ion involved in the reaction of K2CrO4(aq) and Ba(NO3)2(

ID: 807259 • Letter: 1

Question

1) Which is a spectator ion involved in the reaction of K2CrO4(aq) and Ba(NO3)2(aq)?

A.There are no spectator ions

B. Ba2+

C. CrO42-

D. K+

E. NO2-

2)Which one of the following is insoluble in water.

A.NaC2H3O2

B.KCl

C. BaSO4

D.NH4Br

E.NH4NO3

3. Which one of the following is soluble in water.

A.NH3

B. BaCO3

C.AgCl

D.PbI2

E.PbCl2

4)Which pair of ionic formulas is correct for sodium hydrogen sulfate and potassium permanganate?

A.NaHSO4, KMnO3

B.NaHSO4, KMnO4

C.NaHSO2, KMnO4

D.NaHSO3, KMnO3

E.NaHSO3, KMnO4

5)What is the correct net ionic equation when CaCl2 is mixed with AgNO3?

A.2Ag+(aq)+2NO3-(aq)+Ca2+(aq)+Cl-(aq) ? 2AgCl(s)+Ca(NO3)2(s)

B.No precipitate; no reaction.

C.Ag+(aq)+NO3-(aq)+Ca2+(aq)+Cl-(aq) ? AgCl(s)+Ca(NO3)2(s)

D.2NO3-(aq)+Ca2+(aq) ? Ca(NO3)2(s)

E.Ag+(aq)+Cl-(aq) ? AgCl(s)

1.D. K+

2.C. BaSO4

3.A.NH3

4.B.NaHSO4, KMnO4

5.A.2Ag+(aq)+2NO3-(aq)+Ca2+(aq)+Cl-(aq) ? 2AgCl(s)+Ca(NO3)2(s)

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