WorksheetsExam Review
Total questions: 66
Worksheet time: 33mins
Which of the following best describes the trend of atomic radius across a period in the periodic table?
Increases from left to right
Decreases from left to right
Remains the same
Increases and then decreases
What is the common ionic charge for elements in Group 1A of the periodic table?
+1
-1
+2
0
Which of the following is a property of noble gases?
Highly reactive
Good conductors of electricity
Full valence electron shell
Form positive ions easily
What is the Octet Rule?
Atoms gain or lose electrons to have eight electrons in their outer shell
Atoms always have eight protons
Atoms form eight bonds
Atoms are stable with eight neutrons
Compare the atomic radii of a cation and its parent atom.
The cation is larger than its parent atom
The cation is smaller than its parent atom
They are the same size
The cation has no radius
Which of the following elements is most likely to have a high first ionization energy?
Sodium (Na)
Potassium (K)
Fluorine (F)
Calcium (Ca)
What best describes differences between metals and nonmetals on the periodic table?
Metals are found on the right, nonmetals on the left
Metals are found on the left, nonmetals on the right. Metals are typically solids.
Metals have high electronegativity, nonmetals have low electronegativity
Metals are gases, nonmetals are solids
Which of the following best describes electronegativity?
The ability of an atom to lose electrons
The ability of an atom to attract electrons in a bond
The number of protons in an atom
The mass of an atom
What is the trend for reactivity of nonmetals as you move up a group in the periodic table?
Reactivity increases
Reactivity decreases
Reactivity stays the same
Reactivity disappears
Why do atoms bond?
To achieve a stable electron configuration
To increase their size
To lose all their electrons
To become radioactive
What is the main difference between ionic and covalent bonds?
Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons.
Ionic bonds involve sharing electrons, while covalent bonds involve transferring electrons.
Both involve only sharing electrons.
Both involve only transferring electrons.
How can you tell if a bond is ionic or covalent?
By checking if electrons are transferred or shared
By measuring the temperature
By looking at the color of the compound
By checking if the compound is magnetic
Which of the following is NOT a diatomic molecule?
Oxygen (O₂)
Nitrogen (N₂)
Carbon dioxide (CO₂)
Hydrogen (H₂)
What is the correct formula for sodium sulfite?
Na₂SO₃
NaSO₄
Na₂SO₄
NaSO₃
What is the name of the compound CaO?
Calcium oxide
Calcium hydroxide
Calcium carbonate
Calcium nitrate
How does the octet rule apply to covalent bonds?
Atoms share electrons to achieve eight electrons in their outer shell
Atoms lose all their electrons
Atoms gain protons
Atoms become metals
How many valence electrons does nitrogen (N) have?
5
6
7
8
What is the formula for diarsenic trioxide?
As2O3
AsO2
As3O2
AsO3
What is the chemical formula for Silver chloride?
AgCl
AgCl2
Ag2Cl
Ag2Cl2
What is the chemical formula for Dihydrogen monoxide?
H2O
HO2
H2O2
H3O
What is the chemical formula for Chlorine trifluoride?
ClF3
Cl3F
ClF
Cl3F3
What is the chemical formula for Butane?
C4H10
C3H8
C2H6
C5H12
What is the name of the acid with the formula HI?
Hydroiodic acid
Hydrochloric acid
Hydrobromic acid
Hydrofluoric acid
What is the name of the acid with the formula HClO3?
Chloric acid
Chlorous acid
Hypochlorous acid
Perchloric acid
What is the name of the acid with the formula HClO2?
Chlorous acid
Chloric acid
Hypochlorous acid
Perchloric acid
What is the name of the acid with the formula H2SO4?
Sulfuric acid
Sulfurous acid
Hydrosulfuric acid
Sulfous acid
What is the name of the acid with the formula H2S?
Hydrosulfuric acid
Sulfuric acid
Sulfurous acid
Sulfous acid
What is the formula for diphosphorous trioxide?
P2O3
P3O2
PO3
P2O5
What is the formula for disulfur decafluoride?
S2F10
SF6
S2F6
SF10
What is the molecular formula for dinitrogen monoxide?
N2O
NO2
N2O3
N2O5
What is the molecular formula for dinitrogen trioxide?
N2O3
N2O
NO2
N2O5
Which of the following is the correct way to convert atoms to moles?
Divide the number of atoms by Avogadro's number (6.022 x 10²³)
Multiply the number of atoms by the atomic mass
Add the number of atoms to Avogadro's number
Subtract the atomic mass from the number of atoms
If you have 2.98 moles of O₂, what should you do to find the number of molecules?
Multiply 2.98 by Avogadro's number (6.022 x 10²³)
Divide 2.98 by Avogadro's number
Multiply 2.98 by the molar mass of O₂
Add 2.98 to the atomic number of oxygen
Which of the following is the correct process to convert molecules to grams?
Convert molecules to moles, then multiply by the molar mass
Multiply molecules by the atomic number
Divide molecules by the molar mass
Add molecules to the number of protons
A student is given 8.955 x 10²⁴ atoms of copper (Cu). What is the first step to find the mass in grams?
Convert atoms to moles using Avogadro's number
Multiply atoms by the atomic number of copper
Divide atoms by the molar mass of copper
Add atoms to the number of neutrons in copper
You are given 1.801 x 10¹⁰ molecules of H₂O. Which of the following best describes the steps to find the mass in grams?
Convert molecules to moles, then multiply by the molar mass of H₂O
Multiply molecules by the atomic number of hydrogen
Divide molecules by the atomic mass of oxygen
Add molecules to the number of atoms in H₂O
What is the general formula for a synthesis reaction?
A + B → AB
AB → A + B
AB + CD → AD + CB
AB + C → AC + B
What is the general formula for a decomposition reaction?
A + B → AB
AB → A + B
AB + CD → AD + CB
AB + C → AC + B
What is the general formula for a single replacement reaction?
AB + C → AC + B
A + B → AB
AB → A + B
AB + CD → AD + CB
What is the general formula for a double replacement reaction?
AB + CD → AD + CB
AB → A + B
A + B → AB
AB + C → AC + B
What is the general formula for a combustion reaction?
Hydrocarbon + O₂ → CO₂ + H₂O
AB + C → AC + B
AB → A + B
AB + CD → AD + CB
Which of the following is an example of a synthesis reaction?
S₈ + O₂ → SO₂
C₄H₈ + O₂ → CO₂ + H₂O
AlBr₃ + Cu → Al + CuBr₂
Sn₃P₂ + NaCl → SnCl₂ + Na₃P
What is pressure?
The force exerted per unit area
The amount of matter in an object
The energy stored in a system
The speed of a moving object
Which of the following is NOT a unit used to measure pressure?
Pascal (Pa)
Atmosphere (atm)
Kelvin (K)
Torr
According to kinetic theory, which statement is true about the properties of gases?
Gas particles are in constant, random motion
Gas particles are tightly packed together
Gas particles do not move
Gas particles have strong attractive forces
Which of the following is a unit used to measure temperature and must be used in Gas Law calculations?
Kelvin (K)
Pascal (Pa)
Atmosphere (atm)
Torr
Which of the following pairs of variables in gas laws are indirectly related, meaning as one increases, the other decreases (assuming other variables are constant)?
Pressure and Volume
Volume and Temperature
Pressure and Temperature
Number of moles and Pressure
If the volume of a gas decreases from 4.0 L to 0.50 L while the pressure remains constant, what must happen to the temperature to maintain the same pressure?
The temperature must increase
The temperature must decrease
The temperature stays the same
The temperature becomes zero
A marshmallow in a capped syringe decreases in size when the syringe is pushed in...What is the best explanation for this observation?
The pressure inside the syringe increases, compressing the marshmallow
The pressure inside the syringe decreases, causing the marshmallow to expand
The pressure inside the syringe decreases, causing the marshmallow to shrink
The temperature inside the syringe increases, melting the marshmallow
When a piece of dry ice is placed in a sealed film canister and the lid pops off violently, what is the most likely reason?
The dry ice melts and creates a vacuum
Dry ice sublimates, increasing gas particles and pressure inside until the lid pops off
The dry ice absorbs heat and cools the canister
The dry ice reacts with the plastic of the canister
In the egg demo, why does a hardboiled egg end up inside the container when set on top of a flask with cooling water vapor inside?
The egg is pushed in by the weight of the air
The cooling vapor creates a lower pressure inside, and atmospheric pressure pushes the egg in
The egg is pulled in by gravity
The egg is heated and expands into the container
What happens to the volume of the air bubble in the Cartesian diver as you apply pressure to the bottle?
The volume increases
The volume stays the same
The volume decreases
The volume disappears
Why does the Cartesian diver go down when pressure is applied to the bottle?
The diver becomes lighter
The air bubble expands, making the diver float
The air bubble compresses, making the diver sink
The diver dissolves in water
Which law is represented by the equation: P1V1/n1T1 = P2V2/n2T2?
Boyle's Law
Charles's Law
Combined Gas Law
Avogadro's Law
A bag of potato chips is packaged at sea level (1.00 atm) and has a volume of 0.315 L. If this bag of chips is transported to Denver (0.775 atm), what will the new volume of the bag be? (Assume temperature and amount of gas remain constant.)
0.244 L
0.407 L
0.315 L
0.500 L
A child has a toy balloon with a volume of 1.80 liters at 20°C and 1.00 atm. If the balloon rises to a place where the pressure is 0.667 atm and the temperature is -10°C, what would the new volume of the balloon be?
2.10 L
2.40 L
1.50 L
1.80 L
What is the phase change called when a solid turns into a liquid?
Freezing
Condensation
Melting
Sublimation
What is the phase change called when a liquid turns into a gas?
Condensation
Freezing
Deposition
Vaporization
What is the phase change called when a gas turns directly into a solid?
Sublimation
Deposition
Melting
Freezing
What is the phase change called when a solid turns directly into a gas?
Condensation
Freezing
Sublimation
Melting
What is the phase change called when a liquid turns into a solid?
Freezing
Melting
Condensation
Sublimation
What is the phase change called when a gas turns into a liquid?
Melting
Condensation
Freezing
Sublimation
Which region represent the boiling/condensing process?
A to B
B to C
C to D
D to E
During what line segments are the molecules moving faster?
When temperature is constant
When temperature is increasing
When pressure is constant
When time is decreasing
During what line segments are the molecules spreading out and changing phase?
When temperature is constant
During phase changes (flat segments)
When temperature is decreasing
When pressure is increasing
What does the triple point represent?
The point where only a solid exists
The point where only a liquid exists
The point where all three phases (solid, liquid, gas) coexist in equilibrium
The point where only a gas exists
