WorksheetsChemistry Unit Test Review
Total questions: 31
Worksheet time: 17mins
What is the charge of a proton?
Negative
Neutral
Positive
No charge
A family or a group on the periodic table is
Horizontal
Vertical
Left side
Right side
Metals make up the majority of the periodic table and are on which side of the periodic table?
right
left
along staircase
period 2
H2O2 is considered a
Element
period
compound
Mixture
which is the most basic
lemon juice
Hydroclric acid
Bleach
Distilled water
What particles are found in the nucleus of an atom?
proton, neutron
neutron. electron
electron, proton
electron, neutron
A piece of aluminum is dropped into a graduated cylinder and moves the water from 30 to 35 mL. The mass of the piece of aluminum is 40.5 g. What is its density?
Density is D = m/v.
8.0
7.1
8.2
8.1
Where are the metalloids on the periodic table?
Left side
right side
along the staircase
spread throughout the table
The elements on the picture all belong to the same
period
family
group of gases
group of metals
When carbon and oxygen combine the bond is
ionic
covalent
valence
non-metal
In an ionic bond electrons are
Transferred
shared
destroyed
created
Which of the following is NOT an element
Potassium (K)
Water (H20)
Gold (Au)
Carbon (C)
The atomic number indicates the number of _____________ in an atom?
neutrons
electrons
subatomic particles
Protons
Balance the following equation N2 + H2 --> NH3
N2+ 3H2 --> 2NH3
2N2+4H2 --> 3NH3
3N3+2H2 --> 4NH4
All bases are from _____ to ____ on the pH scale.
0-6.9
7
7.1-14
no of the above
The Law of Conservation of Matter is similar to
One football team
Two football teams with different amount of players at each position on the field at the same time.
Two football teams with no players on the field
Two football teams with the exact number of players at each position on the field at the same time.
If a chemical reaction produces 8 grams of carbon, how many grams did it start with?
2
4
6
8
Drain cleaner is a highly caustic chemical that cleans out pipes, it is slippery to the touch (but dangerous) where would it fall on the pH scale?
1
5
7
9
14
What is not an indication that a chemical change has taken place?
change in color
change in temperature
change in shape
formation of a precipitate
Mixtures can be
physically separated
not physically separated
pure substances
separated by a chemical reaction
Which of the following can be considered an chemical property?
Rust, burning
melting point
boiling point
density
magnetism is considered a
chemical property
chemical change
physical property
physical change
what is a physical property of gold?
it tarnishes
it reacts with air and water
it is brittle
luster
What is an sign that a chemical change in this reaction.
bubbles form
two compounds mix in a bag
a homogeneous mixture forms
water dissolves powder
How would you best classify a glass of kool-Aid
heterogeneous mixture
homogenous mixture
alloy
chemical reaction
The liquid with highest mass will
float to top
separate throughout container
sink to bottom
sink to middle of beaker
If sodium (Na) bonds in chlorine (Cl) it is a
covalent bond; Shared
valence bond; transferred
ionic bond, transferred
James Bond; Shared
The chemical compound seen here is called carbon dioxide . Carbon and oxygen are chemically combined using __________ chemical bonds in which electrons are ____________.
ionic; transferred
covalent; shared
ionic; shared
covalent; transferred
Red Litmus paper dipped into a base
stays red
Turns blue
melts
Turns purple
The atom is composed of subatomic particles: protons, neutrons, and electrons that affect the properties of an atom. True or False
True
False
Neutrons have a
Negative charge
No charge
Positive charge
valance charge
