NEW
Font size
S
M
L
XL
WorksheetsBonding and Chemical Calculations
Total questions: 35
Worksheet time: 23mins
Name
Class
Date
1.
What is the chemical formula for the molecule in the image, carbon dioxide?
a)
H2O
b)
CO2
c)
CO
d)
CH4
2.
What type of substance is carbon dioxide?
a)
compound
b)
element
c)
mixture
d)
polymer
3.
What type of bonding is present in carbon dioxide?
a)
covalent
b)
single
c)
ionic
d)
metallic
4.
Which particles are represented by dots and crosses in the image?
a)
neutrons
b)
ions
c)
electrons
d)
protons
5.
Carbon dioxide is a small molecule. Which of the following is a property of small molecules?
a)
conduct electricity
b)
form lattices
c)
high boiling point
d)
low melting point
6.
Which type of bond has one pair of electrons shared between atoms?
a)
ionic
b)
single covalent
c)
metallic
d)
double covalent
7.
Which is described as the force holding atoms together?
a)
formula unit
b)
cation
c)
lattice
d)
chemical bond
8.
What type of bond is this?
a)
ionic
b)
covalent
c)
metallic
d)
peptide
9.
Nitrogen will form which of the following ions?
a)
N
b)
N-3
c)
N-5
d)
N+5
10.
Ionic bonds form between metals and ____.
a)
metalloids
b)
metals
c)
nonmetals
11.
If a compound has a high melting point, and conducts electricity as a solid and as a liquid, what type of structure is it?
a)
metallic
b)
ionic lattice
c)
giant covalent
12.
If a compound has a high melting point, doesn't conduct electricity as a solid but DOES as a liquid, what type of structure is it?
a)
metallic
b)
ionic lattice
c)
giant covalent
13.
If a compound has a high melting point, doesn't conduct electricity as a solid OR as a liquid, what type of structure is it?
a)
metallic
b)
ionic lattice
c)
giant covalent
14.
Magnesium is in group 2. What is the symbol for a magnesium ion?
a)
Mg2-
b)
Mg-
c)
Mg2+
d)
Mg+
15.
Potassium is in group 1. What is the symbol for a magnesium ion?
a)
K2+
b)
K+
c)
K2-
d)
K-
16.
Chlorine is in group 7. What is the symbol for a chlorine ion?
a)
Cl7-
b)
Cl6-
c)
Cl2-
d)
Cl-
17.
How many neutrons does the isotope of lithium have?
a)
8
b)
3
c)
4
d)
5
18.
How many protons does this isotope of titanium have?
a)
48
b)
22
c)
26
d)
70
19.
What element is this? What is the mass number of this atom?
a)
sodium, 23
b)
magnesium, 23
c)
magnesium, 12
d)
sodium, 11
20.
What quantities vary between isotopes of an element?
a)
protons, electrons, and atomic mass
b)
protons, electrons, and atomic number
c)
neutrons and electrons
d)
neutrons and atomic mass
21.
What is the mass number?
a)
the number of protons
b)
the number of protons and neutrons
c)
the number of neutrons
d)
the number of protons and electrons
22.
What is the atomic number of this nucleus?
a)
1
b)
3
c)
4
d)
7
23.
What is the mass number of this nucleus?
a)
1
b)
3
c)
4
d)
7
24.
What is the atomic number of this atom?
a)
8
b)
16
c)
24
d)
none of the above
25.
Complete the missing label on the diagram.
a)
Neutron
b)
Centre
c)
Nucleus
d)
Sub atomic particle
26.
Which one is the property of ionic compounds?
a)
high melting point
b)
not a crystal structure
c)
will not dissolve into water
d)
can't conduct electricity when melted
27.
What is the formula for the compound formed by magnesium ions and oxygen ions?
a)
MgO
b)
Mg2O3
c)
Mg2O2
d)
MgO3
28.
What is the relative formula mass of CO2?
a)
44
b)
32
c)
16
d)
56
29.
Graphene is a single layer of graphite. The bonds between the atoms in graphene are:
a)
ionic
b)
covalent
c)
metallic
30.
Graphene is made of ________ atoms.
a)
chlorine
b)
chromium
c)
carbon
d)
silicon
31.
In graphene each atom bonds to ______ other atoms.
a)
1
b)
2
c)
3
d)
4
32.
What does the symbol Ca stand for?
a)
Carbon
b)
Calcium
c)
Chromium
d)
Copper
33.
What does the symbol C stand for?
a)
Carbon
b)
Calcium
c)
Chromium
d)
Copper
34.
What does the symbol O stand for?
a)
Carbon
b)
Calcium
c)
Chromium
d)
Oxygen
35.
How many atoms of calcium are in the molecule CaCO3?
a)
1
b)
2
c)
3
d)
4
Reset
