Dr. Herrick's CH221
Pressure Quiz 2

     

 

   

Components of Matter
Copyright D. Herrick

 

20 Questions from past exams.
Practice for speed.  Aim for 40 seconds per problem.

 

  
periodic table

1. Isotopes of an element have
A) the same mass number
B) the same number of neutrons
C) equal numbers of neutrons and protons
D) the same number of protons
E) the same number of electrons

   

2. The number of neutrons in neon-20 is
A) 40 B) 10  C)  0  D) 20 E)  15
 
3. The number of protons in lead is
A)  78 B) 46  C)  61 D)  15  E)  82

 

4. The magnet in a mass spectrometer separates ions according to their
A)    mass
B) charge
C) charge-to-mass ratio
D)    charge mass
E) number of neutrons
 
5. The FALSE statement is:
A)  Noble gases tend to gain electrons in chemical bonding
B)  nonmetals and metals form ionic bonds
C)  nonmentals form covalent bonds with other nonmetals
D)  most of the elements in the periodic table are metals

  

  

6. The formula for potassium bromide is
A)  K2Br B)  KBr2 C) KBr D)  K2Br3 E)  BrK

   

   

7. The formula for magnesium chloride is
A)  Mg2Cl B) Mg2Cl3 C) MgCl D) Mg3Cl2 E) MgCl2

     

8.  The formula for sodium carbonate is
A)  NaCO2 B)  NaC  C) Na2CO3 D) NaCO3 E) NaC8
 
9.  The formula for calcium nitride is
A)  CaNO2 B)  Ca(NO2)2 C) CaN2 D) Ca3N2 E) Ca2N3
 
10.  The charge on the metal ion in SnCl4 5H2O is
A) +1 B) +2  C)  +4 D)  +5 E) +9

           

11.  When hydrogen chloride gas is dissolved in water it's called
A)  hydrogen chloride
B)  hydrochloride acid
C)  hydrogen chloride acid
D)  hydrochlorine acid
E)   hydrochloric acid
 
12.  The formula for aluminum carbide is
A)  Al4C B)  Al2C3 C) Al3C D) Al3C2 E) AlC4
 
13.  The formula for iron(III) oxide heptahydrate is
A)    Fe3O2(H2O)7
B) Fe2O3 7H2O
C) (Fe3O2)7H2O
D)    Fe3O2 6H2O
E) Fe2O3(H2O)7

         

14. The formula for barium sulfite is
A)  BaS  B)  BaSO2 C)  BaSO3 D)  BaSO4 E)  BaS2

     

15. The formula for tetraphosphorous trisulfide is
A)  P4S3 B)  P4S2 C)  P3S4 D)  P3S2 E)  P2S3

     

16.  The formula for copper(II) nitrate is
A)  CuNO3 B)  Cu2NO3 C)  Cu(NO3)2 D)  CuNO2 E) Cu(NO2)3

     

17. Al(ClO3)3 is called
A)    aluminum chlorite 
B) aluminum trichlorate
C) aluminum trichlorite
D)    aluminum chlorate 
E) aluminum perchlorate

    

18. CO2 is called
A) dioxygen carbide
B) carbon oxide
C) carbonic oxygen
D) carbon dioxide
E) carbon oxygen

         

19.  Use the atomic weights 12(C), 14(N), 16(O), 1(H) to find the molecular weight of dinitrogen pentaoxide.
A)  30 B)  108  C) 68 D) 88 E) 102

     

20.  Use the atomic weights 12(C), 1(H), 16(O), 23(Na) to find the molecular weight of sodium acetate.
A)  82 B)  74  C) 68 D) 78 E) 84

        

  

 

    

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   Copyright D. Herrick