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WorksheetsChem B Review
Total questions: 68
Worksheet time: 2hrs 38mins
If the amount of gas and volume does not change, when the temperature increases
A. Pressure will increase
B. Pressure will decrease
C. Pressure will not change
Which of the following might occur if the amount of gas is increased?
A. The volume will increase
B. The pressure will decrease
C. The temperature will not change
D. The gas constant will be modified
When solving problems that deal with temperature it is best to use which unit of temperature?
A. °C
B. K
C. It doesn't matter
If the volume of a gas is tripled while the temperature is held constant, the pressure will:
A. also get 3 times bigger
B. not change
C. be reduced to 1/3
D. get bigger or smaller depending on the type of gas
A gas occupies .5 L at 20°C. What will be the new volume when the temperature is changed to 45 °C? Convert to Kelvin
A. 11.25 L
B. 8.78 L
C. 5.43 L
D. 2.22 L
A gas at 1.2 atm, and has a volume of 34 L. Assuming that temperature is not changed, what will be the expected pressure if the volume was reduced to 22.5 L?'
A. 9.58 atm
B. 0.79 atm
C. 1.81 atm
D. 1.2 atm
Temperature and Volume are
A. Directly
B. Inversely related.
C. Not related
Gas particles are always 'in constant, random motion,
A) TRUE
B) FALSE
Which is an example of an amorphous solid?
A) graphite
B) rubber
C) diamonds
What is the cause of all the very unique properties of water?
A) because water has 2 triple points on the phase diagram
B) stronger than average intermolecular forces
C) molecules move at a higher average kinetic energy than most liquids
D) the kinetic theory does not apply to water
Compared to liquids, gases:
A) have less space between molecules
B) move slower
C) have weaker attractive forces
A pure substance will have
same substance with some impurities.
i) higher boiling point
ii) lower boiling point
iii) higher freezing point
iv) lower freezing point
A) i and iii
B) i and iv
C) ii and iii
D) ii and iv
The amount of solid that can dissolve in water generally increases with Temp.
A) TRUE
B) FALSE
What condition do we use to read "normal" boiling and melting points?
A) 100°C
B) 0°F
C) 1 kPa
D) 1atm
Which has a lower freezing point?
A) pure water
B) solution of sugar water
Which state of matter has more "order" to its molecular arrangement?
A) solid
B) liquid
C) gas
What element has this electron configuration: 1s2 2s2 2p4
A. O
B. F
C. S
D. C
E. Br
What element probably has this electron configuration ending: ....3d3
A. V
B Sc
C Y
D. Nb
E. As
Which element is a alkaline earth metal?
A. Chiorine
B. Magnesium
C. Aluminum
D. Xenon
Which element is a halogen?
A. Chlorine
B. Magnesium
C. Aluminum
D. Xenon
Which element is a metal?
A. Silicon
B. Carbon
C. Cadmium
D. Selenium
Which element will make a -2 charge?
A. Oxygen
B. Barium
C. Sodium
D. Bromine
Which wave has the highest frequency?
A. Radio
B. Visible Light
C. X-rays
D. Microwaves
The shape of all orbitals are circular (like the Earth orbits around the Sun)
A. True
B. False
What causes some atoms to give off a color of light when put into a flame?
A. The element's protons and neutrons are separating in the nucleus
B. The element's electrons are flying off the atom never to return again
C. The electrons in an atom are moving from energy level to energy level giving off photons
D. The protons in an atom are switching places
Which of these has the shortest wavelength?
A. Gamma ray
B. X-ray
C. Indigo wave
Which of these has the longest wavelength?
A. Orange light
B. Yellow light
C. Green light
Which of these has the smallest (lowest) frequency?
A. Microwaves
B. Ultraviolet
C. Blue light
Which of these is the correct electron configuration of Al (Aluminum)?
A. 1s2 2s2 2p1
B. 1s2 2s2 2p6 3s1 3p2
C. 1s2 2s2 2p6 3s2 3p1
D. None of these
What is one type of science where the line spectra of elements is commonly used?
A. Astronomy
B. Anatomy
C. Geology
D. Monopoly
How many electrons can fit in a single orbital ?
A. 1
B. 2
C. 4
D. 6
How many electrons can fit into the entire second energy level?
A. 2
B. 6
C. 8
D. 10
E. 18
How many types of orbitals are in the "d" sublevel?
A. 0
B . 1
C. 3
D. 5
E. 10
Which is the definition of ionization energy:
A. The radius of an atom.
B. The ability/strength of an atom to attract shared electrons in a bond to
itself.
C. The energy required to remove an electron - turning an atom into an ion.
D. The radius of an ion.
Which is the definition of electronegativity:
A. The radius of an atom.
B. The ability/strength of an atom to attract shared electrons in a bond to
itself.
C. The energy required to remove an electron - turning an atom into an ion.
D. The radius of an ion.
Which of the following groups contain three elements with stable electron configurations?
a. lithium, krypton, argon
b. argon, neon, barium
c. xenon, neon, boron
d. helium, xenon, neon
Typically, atoms gain or lose electrons to achieve
a. an exchange of energy.
b. ionization.
c. a stable electron configuration
d. vaporization
The formation of an ionic bond involves the
a transfer of electrons.
b transfer of neutrons.
c transfer of protons.
d sharing of electrons.
How many valence electrons does nitrogen have?
A. 1
B. 2
C. 3
D. 5
E. 7
Which of these bonds is the strongest?
A Single Covalent Bond
B. Double Covalent Bond
C. Triple Covalent Bond
Which of the following elements will probably form with K to make an ionic bond?
A. Ca
B. AI
c. Cl
D. Xe
Assuming we are forming covalent bonds, how many bonds will a carbon atom form?
A. 1
B. 2
C. 3
D. 4
What type of covalent bond is the shortest in length.
A. Single
B. Double
C. Triple
D. All the same
Which kind of bond has a ''sea of electrons?"
A. Ionic
B. Polar
C. Covalent
D. Metallic
How many carbons are in hexane?
A. 2
B. 3
C. 4
D. 5
E. 6
How many carbons are in butane?
A. 1
B. 2
C. 3
D. 4
E. 5
How many HYDROGENS are in pentane?
A. 8
B. 10
C. 12
D. 14
E. 16
How many HYDROGENS are in methane?
A. 1
B. 4
C. 6
D. 10
E. 12
Does octane contain:
A. single bonds only
B. a double bonds
C. a triple bonds
CO2 is a hydrocarbon.
A. True
B. False
Isomers are different geometric arrangement of the same molecular formula:
A. True
B. False
Covalent compounds have high melting and boiling points.
A. True
B. False
What does electronegativity indicate?
A. Indicates the amount of replusion in a chemical bond
B. Indicates the realative ability of an atom to attract electrons in a
chemical bond.
C. Indicates the relative ability of an atom to donate electrons in a
chemical bond.
D. Indicates when a molecule conducts electricity.
Ionic compounds are malleable and ductile.
A. True
B. False
How does increasing the amount of carbon in steel affect its properties?
A. Carbon makes the lattice harder and stronger.
B. Carbon makes the steel softer and easier to cut.
C. Carbon formsan oxide that protects the steel from rusting
D. Carbon makes steel light enough to use for airplane parts
How many valence electrons does Cs have?
A. 1
B.2
C. 3
D.4
Assuming we are forming covalent bonds how many bonds will an oxygen atom
form?
A. 2
B. 4.
C. 6
D. 8
Tastes sour
Acid
Base
Feels Sticky
Acid
Base
Reacts with metals to form H2 Gas
Acid
Base
Used in Fertilizers
Acid
Base
Baking Soda is an example
Acid
Base
Tastes Bitter
Acid
Base
Feels Slippery
Acid
Base
Kinetic Energy is the energy of motion
True
False
The symbol h is used for heat
True
False
Temperature is the ability to do work or produce heat
True
False
The amount of energy required to raise the temperature of one gram of a substance by one degree Celsius is defined as:
a. a calorie
b. heat
c. a joule
d. . Specific heat
