WorksheetsChapter 20
Total questions: 20
Worksheet time: 16mins
Name
Class
Date
1.
A binary compound is composed of ___ elements
a)
4
b)
3
c)
2
d)
polyatomic
2.
True or False: The properties of a compound are the same as the properties of the elements making up the compound
a)
true
b)
false
3.
SO₄²⁻ is
a)
sulfide
b)
sulfur
c)
sulfate
d)
sulfade
4.
NH₄⁺ is
a)
nitride
b)
nitrate
c)
ammonium
d)
nitrogen tetrahydrite
5.
Particles formed from the covalent bonding of atoms are called ____________.
a)
molecules
b)
ions
c)
neutral
d)
ionic
6.
The charge of a compound will be which of the following?
a)
negative
b)
neutral
c)
positive
d)
1
7.
How do electrons behave in covalent bonds?
a)
They are shared
b)
They are transferred
c)
badly
d)
great
8.
What is the correct chemical formula for Calcium Oxide?
a)
Ca₂O
b)
CaO₂
c)
2CaO
d)
CaO
9.
What kind of molecule has a slight positive charge on one side and a slight negative charge on the other?
a)
nonpolar
b)
polar
c)
ionic
d)
binary
10.
How do electrons behave in an ionic compound?
a)
They are transferred
b)
They are shared
c)
They are destroyed
d)
They stay in place
11.
What is the name of a binary compound made of sodium and chlorine?
a)
sodium chlorine
b)
chlorine sodium
c)
sodium chloride
d)
sodium chlorate
12.
What is the name for K₂SO₄?
a)
potassium sulfide
b)
potassium sulfate
c)
potassium sulfur
13.
What group of elements is the most stable?
a)
Noble gases
b)
Halogens
c)
Alkali metals
d)
transition metals
14.
Which is a group of covalently bonded atoms that acts together as one charged atom?
a)
ion
b)
shared
c)
molecule
15.
Which is a polyatomic ion?
a)
K
b)
S₂
c)
NH₄⁺
d)
oxide
16.
How many electrons are needed in the outer energy levels of most atoms for the atom to be chemically stable?
a)
8
b)
2
c)
32
d)
18
17.
What is the total number of atoms in
Mg (NO₃)₂ ?
Mg (NO₃)₂ ?
a)
6
b)
8
c)
10
d)
9
18.
The sum of the oxidation numbers in a neutral compound is always
a)
1
b)
2
c)
negative
d)
zero
19.
Which if the following is a heptahydrate?
a)
MgSO₄ ⋅ 6H₂0
b)
MgSO₄ ⋅ 7H₂0
c)
MgSO₄
d)
MgSO₄ ⋅ 8H₂0
20.
The oxidation number is shown with a
a)
superscript
b)
subscript
100 %
