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WorksheetsChemical bonds and Chemical Equations
Total questions: 22
Worksheet time: 32mins
Name
Class
Date
1.
Covalent bonds are between...
a)
Metal and Non-metal
b)
Non-metal and Non-metal
c)
Metal and Metal
2.
What is a valence electron?
a)
The sum of neutrons and protons.
b)
The # of electrons in the last shell.
c)
A type of bond.
d)
A popular compound.
3.
Ionic bonds are between...
a)
Metal and Non-metal
b)
Non-metal and Non-metal
c)
Metal and Metal
4.
Atoms are most stable when their outer shell is complete.
a)
true
b)
false
5.
How are covalent bonds formed?
a)
Sharing of electrons
b)
Transfer of electrons
6.
How are ionic bonds formed?
a)
Transfer of electrons
b)
Sharing of electrons
7.
Why do elements bond?
a)
To be friends
b)
To create a new element
c)
To become stable
8.
Where are the metalloids located on the periodic table?
a)
Blue
b)
Red
c)
Green
9.
Where are metals located on the periodic table?
a)
Blue
b)
Green
c)
Red
10.
Where are the nonmetals located on the periodic table?
a)
Blue
b)
Red
c)
Green
11.
How many E atoms are there in this silly formula?
2E2Fg3Hi4
2E2Fg3Hi4
a)
4
b)
2
c)
1
d)
3
12.
What coefficient should go in the blank space to balance the chemical equation?
2Al +____ HCl → 2AlCl3 + 3H2
2Al +____ HCl → 2AlCl3 + 3H2
a)
2
b)
4
c)
3
d)
6
13.
The Law of Conservation of Mass states that ALL matter....
a)
can be created and destroyed
b)
cannot be created nor destroyed but can change form
c)
cannot be created nor destroyed but can be transfered
d)
can be created but not destroyed
14.
Coefficients tell us how many ________ there are of an element in a compound.
a)
Elements
b)
Atoms
c)
Molecules
15.
How many TOTAL atoms are in 2H2SO4
a)
2
b)
4
c)
7
d)
14
16.
Is the following equation balanced or unbalanced ?
Al + O2 --> Al2O3
Al + O2 --> Al2O3
a)
Balanced
b)
Unbalanced
17.
When a formula unit of magnesium sulfide, MgS, is separated into magnesium and sulfur particles, the particles are called
a)
molecules
b)
ions
c)
isotopes
d)
compounds
18.
Which of these is covalent?
a)
NaCl
b)
Pb(NO3)2
c)
CO2
d)
AlCl3
19.
Predict the bond that will form between Be and F.
a)
Ionic
b)
Covalent
20.
Predict the bond that will form between Se and Cl.
a)
Ionic
b)
Covalent
21.
Predict the bond that will form between Sr and S.
a)
Ionic
b)
Covalent
22.
Is the compound Ionic or Covalent?
NO2
NO2
a)
Ionic
b)
Covalent
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