Arkansas State University  Department of Chemistry and Physics
CHEM1013	Exam 1

1.  Name the following compounds.        (16 points)

a)  SO₂

b) Co(HSO₃)₂•4H₂O

c) NH₃

d) Al(NO₃)₃

e) (NH₄)₂S

f) HBr _(aq)

g) LiClO₄

h) H₂SO₄

2. Give the formula from the name for each of the following:   (14 points)

a) ferric sulfate

b) trinitrogen pentasulfide

c) copper(II) chloride

d) potassium dichromate

e) silver oxide

f) nitrous acid

g) zinc carbonate

3. Listed below are descriptions of either metals or nonmetals.  Match A for metals and T for nonmetals.         (10 points)
 

a) noble gases	.
b) nonductile	.
c) brittle solids	.
d) selenium	.
e) halogens	.
f) tend to lose electrons	.
g) transparent as thin sheets	.
h) malleable	.
i) hydrogen	.
j) transition elements	.

4.  Classify each of the following elements as either representative, transition, inner transition or noble gas.        (5 points)

a)  C

b)  Ho

c)  Ar

d)  As

e)  Nb
 

5.  Fill in the blanks.     (1 point each)

a)  A chemical combination of two or more atoms in a definite proportion is called a                                                 .

b)  The charge on the neutron                                                .

c)  Atoms with the same atomic number but differing atomic masses are called                                   .

d)  Column in the Periodic Table is a group or                                                 .

e)  Row in Periodic Table                                                       .

f)  Another name for Group IIA                                                            .

g) Another name for Group VIIIA                                                          .

h) The atomic masses of the Periodic Table are based on the isotope                                     .

i, j) List two elements that are liquids at room temperature                           ,                         .

k) The identity of an element depends on the number of                                                   .

l)  Elements with properties of both metals and nonmetals                                                    .

m, n) List two elements that can exist as diatomics                                ,                                 .

o)  Different forms of the same element are called                                                      .

6.   Label each of the following as either extensive (E) or intensive (I).     (5 points)
 

a) boiling point of water	.
b) mass of gravel	.
c) amount of heat needed to melt ice	.
d) color of a lead rod	.
e) hardness of diamond	.

7.   Label each of the following as either a chemical (C) or physical (P) change.     (5 points)
 

a) ice melting	.
b) wood burning	.
c) dissolving sugar in water	.
d) gasoline burning	.
e) digestion of pizza	.

8.   Label each of the following as either a homogeneous (M) or heterogeneous (T) mixture.     (5 points)
 

a) sugar and sand	.
b) muddy water	.
c) 3 % hydrogen peroxide solution	.
d) pizza	.
e) carrots and peas	.

9.  Draw the Lewis Dot Structure for each of the following:           (15 points)

a)  AsF₃                                                b)  CO₂

c)  SO₃                                                  d)  SCl₆

e)  NO₃^-

10.  Name the following ions:        (1 point each)

a) CN^-

b)  CO₃^2-

c)  SO₄^2-

d)  PO₄^3-

e) MnO₄^-

11.  Give the formula and the correct charge for each of the following:  (1 point each)

a) perchlorate

b) sulfide

c) nitrate

d) dichromate

e) hydroxide