AP Chemistry
Name:
Exercise 2.7
Date:
Structures and Naming I
Per:
DIRECTIONS: Complete the following in the space provided:
1.
Observations of the reaction between nitrogen gas and hydrogen gas show us that 1 volume of nitrogen reacts with 3
volumes of hydrogen to make 2 volumes of gaseous product as shown below.
Determine the formula of the product:
2.
A sample of H2SO4 contains 2.02 g of hydrogen, 32.07 g of sulfur, and 64.00 g of oxygen. How many grams of sulfur
and grams of oxygen are present in a second sample of H2SO4 containing 7.27 g of hydrogen.
3.
For each of the following sets of elements, label each as either noble gases, halogens, alkali metals, alkaline earth metals,
or transition metals:
a.
b.
c.
4.
Ti, Fe, Ag:
Mg, Sr, Ba:
Ne, Kr, Xe:
d.
e.
F, Br, I:
Li, K, Rb:
Write the symbol of each atom using the AZX format:
10 electrons
a.
Revised: 2018-08-13
b.
c.
AP Chemistry
Name:
Exercise 2.7
Date:
Structures and Naming I
5.
Per:
Complete the following chart:
Symbol
# of Protons
# of Neutrons
# of Electrons
Net Charge
20
20
23
28
20
35
44
36
15
16
3-
26
33
3+
85
125
86
13
14
10
76
54
238
92
U
53
26
6.
7.
2+
Fe 2 
Name each of the following compounds:
a.
Rb2O:
f.
SeCl4:
b.
FeBr3:
g.
Sr3P2:
c.
S4N4:
h.
Co2S3:
d.
Ag2S:
i.
SO3:
e.
CuI2:
j.
AlI3:
Write the formula for each of the following compounds:
a.
sulfur difluoride:
f.
manganese(IV) sulfide:
b.
lithium nitride:
g.
diphosphorus pentoxide:
c.
tin(II) chloride:
h.
cadmium selenide:
d.
carbon tetraiodide:
i.
chromium(VI) oxide:
e.
gallium arsenide:
j.
calcium iodide:
Revised: 2018-08-13
2-