Asked on 22 Nov

1. How many of the following compounds are insoluble in water?

KC2H3O2 CaSO4 SrS AlPO4

 

2. Which of the following is a precipitation reaction?

Zn(s) + 2 AgNO3(aq)   2 Ag(s) + Zn(NO3)2(aq) 

HCl(aq) + KOH(aq) KCl(aq) + H2O(l)

NaCl(aq) + LiI(aq) NaI(aq) + LiCl(aq) 

2 LiI(aq) + Hg2(NO3)2(aq) Hg2I2(s) + 2 LiNO3(aq)

 

3. Which of the following pairs of aqueous solutions will form a precipitate when mixed?

  K2CO3 + NaCl

CaS + Na2SO4 

Na2SO4 + KOH

4. Determine the oxidation state of C in CO3-2.

5. Which of the following exists as a polyatomic molecule?

N

C

P

Ne

Na

6.Give the name for SnO.

  tin (I) oxide

   tin (III) oxide

   tin (II) oxide

   tin (IV) oxide

7.Write the name for FeS.

  iron (I) sulfide

   iron (I) sulfate

   iron (II) sulfate

   iron sulfide

   iron (II) sulfide

8.Acrylonitrile, C3H3N, is a molecule used to produce a plastic called Orlon. How many grams of acrylonitrile could be produced by reacting 583 g of propene, C3H6 with excess ammonia, NH3, and oxygen?

2C3H6+ 2NH3+ 3O2  C3H3N + 6H2O

Answered on 22 Nov

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