WorksheetsChemistry Units 1 & 2 Review
Total questions: 15
Worksheet time: 15mins
Name
Class
Date
1.
Which element does this atomic structure belong to?
a)
Nitrogen
b)
Boron
c)
Sodium
d)
Sulfur
2.
How many protons, neutrons, and electrons does Zinc have?
a)
30 protons
35 neutrons
30 electrons
35 neutrons
30 electrons
b)
30 protons
95 neutrons
30 electrons
95 neutrons
30 electrons
c)
35 protons
30 neutrons
35 electrons
30 neutrons
35 electrons
d)
30 protons
65 neutrons
30 electrons
65 neutrons
30 electrons
3.
Which period and family does Fluorine belong to?
a)
Period 3
Family 17
Family 17
b)
Period 17
Family 3
Family 3
c)
Period 2
Family 17
Family 17
d)
Period 17
Family 2
Family 2
4.
Which of the following elements is a metalloid?
a)
Helium
b)
Hydrogen
c)
Potassium
d)
Silicon
5.
True or False: The ability of a substance to tarnish is a physical property.
a)
True
b)
False
6.
Which of the following is a chemical change?
a)
Water evaporates from the ocean.
b)
An egg is cooked.
c)
Food coloring dissolves in water. (Solubility)
d)
You get a hair cut.
7.
Which of the following bonds is considered covalent?
a)
A metalloid bonds to a nonmetal
b)
A nonmetal bonds to another nonmetal
c)
A metal bonds to a nonmetal
8.
Is the bonding between sodium and chloride (Na+Cl) ionic or covalent?
a)
Ionic
b)
Covalent
9.
Which of the following substances is a mixture?
a)
Sweet tea
b)
Water (H2O)
c)
Copper
d)
Hydrogen peroxide (H2O2)
10.
What is the formula for density?
a)
Mass / Volume
b)
Volume / Mass
c)
Volume x Mass
d)
Mass x Volume
11.
The pH of an acidic substance is:
a)
Between 1 and 6.9
b)
7
c)
Between 7.1 and 14
12.
If you taste something that is sour, it is most likely a/an:
a)
Base
b)
Acid
c)
Neutral
13.
If we add water to a substance, it will bring the pH of that substance closer to:
a)
1
b)
7
c)
14
14.
The law of conservation of matter states:
a)
Matter cannot be added
b)
Matter cannot be removed
c)
Matter remains constant
d)
All of the above
15.
Is the following chemical equation balanced?
Cl2 + KBr → Br2 + KCl
Cl2 + KBr → Br2 + KCl
a)
Yes
b)
No
100 %
