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WorksheetsChemistry Unit Review
Total questions: 27
Worksheet time: 27mins
Name
Class
Date
1.
Which of the following is NOT an example of matter?
a)
Atom
b)
Element
c)
Subatomic particle
d)
Chemical bond
2.
Which of the following is NOT part of an atom?
a)
Protons
b)
Electrons
c)
Neutrons
d)
Isotopes
3.
In which bond type do atoms share valence electrons?
a)
Ionic bond
b)
Covalent bond
c)
Hydrogen bond
d)
Nuclear bond
4.
What is a molecule?
a)
Structure made of isotopes
b)
Structure made of subatomic particles
c)
Structure made of compounds
d)
Structure made of atoms
5.
The picture above depicts which of the following?
a)
A molecule
b)
A compound
c)
An atom
d)
Hey! Those first two are the same.
6.
All of the images in the picture above would be considered what?
a)
Molecules
b)
Compounds
c)
Atoms
d)
Ions
7.
What is a substance that cannot be broken down by chemical means?
a)
An element
b)
A molecule
c)
A compound
d)
An atom
8.
Which of the following statements about valence electrons is FALSE?
a)
They are located on the outside edge of an atom
b)
They are used to create covalent bonds
c)
They are used to create hydrogen bonds
d)
They are used to create ionic bonds
9.
Which of the following statements is FALSE about an atom that loses an electron?
a)
The atom has a positive charge
b)
The atom is now an ion
c)
The atom now has more protons than electrons
d)
The atoms is now an isotope
10.
Which of the following is NOT an isotope?
a)
Carbon atom with 6 neutrons
b)
Carbon atom with 7 neutrons
c)
Carbon atom with 8 neutrons
d)
All of these ARE isotopes
11.
An isotope is radioactive if it...
a)
Gives off energy
b)
Can be used in medicine
c)
Spontaneously combusts
d)
Starts fires!
12.
Which of the following is NOT an example of a chemical bond?
a)
Covalent bond
b)
Hydrogen bond
c)
Ionic bond
d)
Nonpolar covalent bond
13.
What is that molecule in the image above?
a)
Isotope
b)
Anion
c)
Cation
d)
Nonpolar
14.
In which type of bond does one atom take the electron(s) away from the other?
a)
Ionic bond
b)
Covalent bond
c)
Hydrogen bond
d)
Nuclear bond
15.
In this image, the electrons are being pulled more toward the oxygen molecule. What type of bond results?
a)
Polar covalent bond
b)
Nonpolar covalent bond
c)
Ionic bond
d)
Hydrogen bond
16.
Which atom, in this image, has a higher electronegativity?
a)
The hydrogen atom on the right
b)
The hydrogen atom on the left
c)
The oxygen atom
d)
Their electronegativity is equal
17.
In this image, the dashed line represents an attraction between two molecules, and is known as a...
a)
Covalent bond
b)
Nuclear bond
c)
Ionic bond
d)
Hydrogen bond
18.
If those person-circles in the picture were molecules, they would be experiencing...
a)
Adhesion
b)
Cohesion
c)
Surface tension
d)
Capillary action
19.
Water sticks to the web in the picture because of...
a)
Adhesion
b)
Cohesion
c)
Surface tension
d)
Capillary action
20.
Lemon juice has a pH of 2, therefore, it is a/an...
a)
Base
b)
Acid
21.
Which of the following statements about acids is FALSE?
a)
They are low on the pH scale
b)
They give hydrogen ions away
c)
They cause the H+ concentraion to increase
d)
All of these statements are TRUE
22.
Liquid naturally moves up narrow space because of...
a)
Cohesion
b)
Adhesion
c)
Capillary action
d)
Surface tension
23.
Surface tension is the result of ...
a)
Hydrogen bonding
b)
Cohesion
c)
Adhesion
d)
Just those first two
24.
Which of the following is the amount of energy in moving molecules?
a)
Heat
b)
Temperature
c)
Specific heat
d)
Radiation
25.
Which of the following is the measurement of heat energy in moving molecules?
a)
Heat
b)
Temperature
c)
Specific heat
d)
Radiation
26.
You dissolve sugar into water, because you just like the way it tastes. Which of the following is the solute?
a)
Sugar
b)
Water
c)
Sugar and water
d)
Minerals in the water
27.
An aqueous solution is made with...
a)
Any type of liquid
b)
Oil
c)
Water
d)
Soda pop
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