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Worksheets2024 Fall Semester Review
Total questions: 113
Worksheet time: 5hrs 33mins
1. Which of the following processes involves a change in physical properties?
rusting
fermenting
boiling
burning
A nail rusting
Physical Property
Chemical Property
What are the signs of a chemical change?
Bubbles
Gas
Odor
All of these
Which is a physical change?
dying your hair
dissolving sugar in water
According to the First Law of Thermodynamics, which of the following statements is true?
Heat is a form of energy that can be created and destroyed.
Heat can be transferred from a cold object to a hot object without external energy.
Heat is a form of energy that can neither be created nor destroyed, only transferred.
Heat is not a form of energy and does not follow the law of conservation.
What does the Zeroeth Law of Thermodynamics state?
If two bodies are in thermal equilibrium with a third body, they are not in equilibrium with each other.
If two bodies are in thermal equilibrium with a third body, they are also in equilibrium with each other.
If two bodies are in thermal equilibrium, they must be at the same temperature.
If two bodies are not in thermal equilibrium, they cannot exchange heat.
What determines the temperature of an object?
The amount of potential energy in an object.
The amount of heat it radiates.
The amount of kinetic energy in an object.
The amount of heat it absorbs from the environment.
What is the Second Law of Thermodynamics primarily concerned with?
The unrestricted creation and destruction of heat energy.
The transfer of heat energy from a body at a lower temperature to a body at a higher temperature without the addition of outside energy.
The prediction of energy costs for heating and cooling systems.
The concept of entropy and the direction of heat transfer.
What does entropy describe in a thermodynamic system?
The transition of energy from one form to another.
The amount of disorder in the system.
The process of heat transfer by direct contact.
The emission and absorption of electromagnetic radiation.
Which process involves the transfer of heat between objects by direct contact?
Radiation
Convection
Conduction
Entropy
What is convection?
The form of heat transfer where energy is transferred through waves.
The form of heat transfer where energy transition occurs within a liquid or gas.
The form of heat transfer that involves electromagnetic radiation.
The form of heat transfer that increases the entropy in a system.
How does radiation allow for heat transfer?
Through the direct contact of two objects.
By the movement of fluids or gases.
By the emission or absorption of electromagnetic radiation.
By increasing the disorder in a system.
What process is depicted in the first diagram where warm molecules rise and cool molecules sink?
Radiation
Conduction
Convection
Evaporation
What is the term used to describe the transfer of thermal energy through empty space, as shown in the second diagram?
Convection
Conduction
Radiation
Insulation
Which set of properties, intensive or extensive, are based on the size of a sample?
intensive
extensive
What kind of physical property is this? Density
intensive
extensive
What kind of physical property is this? Volume
intensive
extensive
What energy transformation occurs as a mouse produces body heat?
Chemical --> Thermal
Thermal --> Chemical
Electrical --> Thermal
Thermal --> Mechanical
The Law of Conservation of Energy states that energy is never _____________ or ____________, only transformed.
created, destroyed
created, subtracted
added, subtracted
destroyed, subtracted
These are found in the nucleus and have a neutral charge.
proton
electron
neutron
The number 16 for the atomic element sulfur is the
ionic number
isotope
atomic mass
atomic number
How many electrons does sulfur have
16
32
48
12
How many neutrons does an Oxygen atom have?
8
16
24
7.999
The atom is mostly large empty space with a small, dense nucleus at the center
Dalton
Thomson
Rutherford
Bohr
Atom is a positively charged cloud with embedded negative electrons
Dalton
Thomson
Rutherford
Bohr
Atoms are indivisible (cannot be broken down)
Dalton
Thomson
Rutherford
Bohr
What scientist proposed this atomic model?
Dalton
Thomson
Rutherford
Bohr
Calculate the wavelength of the yellow light emitted by the street light, if the frequency of the radiation is 5.10x1014Hz.
5.12 x 10-7m
5.88 x 10-7 m
4.20 x 1014m
3.0 x 108m
Energy is measured in........
Wavelength
Meters
Joules
Frequency
On a wave, the distance between crest to crest is called?
amplitude
wavelength
frequency
trough
Which color in the visible spectrum of light has the longest wavelength?
Indigo
Red
Blue
Violet
What is the frequency of light with a wavelength of
4.8 x 10-7 meters?
5.34 x 10-9 Hz
3.0 x 108 Hz
3.21 x 1017 Hz
6.25 x 1014 Hz
Which of the following has the shortest wavelength?
microwaves
UV rays
Infrared
the color blue
Which of the following has the most energy?
Red
Blue
Green
Violet
As the wavelength of a wave increases its energy
increases
decreases
As the frequency of a wave increases, its energy
increases
decreases
Of the following sublevels, which is the highest in energy?
4s
3d
4p
5s
1s22s22p63s23p64s23d10
Choose the correct shortcut configuration for iodine.
[Ar]4s24d104p5
[Kr]5s24d105p5
[Xe]5s25d105p5
none of the above
When an electron in the _______state absorbs energy, it goes to the ________ state.
lower, excited
ground state, higher state
ground state, excited state
excited state, ground state
A photon of light has a frequency of 4.98x1014 Hz. Calculate its energy.
5.52x10-19 J
4.79x10-19 J
4.66x10-19 J
3.30x10-19 J
How many electrons can fit on the 1st energy level (orbital) for any Bohr Model?
2
6
8
10
When electrons transfer from one atom to another, both atoms become
ions
isotopes
molecules
compounds
When electrons are shared between
atoms, a(n) __________ forms.
ionic bond
covalent bond
hydrogen bond
van der waals forces
Which two types of particles are present in equal numbers in an atom, but not in
an ion?
protons and electrons
protons and neutrons
inner-shell electrons and outer-shell electrons
protons and inner-shell electrons
What is a cation's charge?
positive
negative
neutral
depends on the element
What is an anion's charge?
positive
negative
neutral
depends on the element's charge
Is potassium a cation or an anion?
cation
anion
What is the charge of iron (III)?
+3
+2
+6
+4
Which family is the most reactive Non-Metals
Alkali Metals (Group 1)
Alkaline Earth Metals (Group 2)
Transition Metals (Group 3-12)
Halogens (Group 17)
Noble Gases (Group 18)
As you move down a group on the periodic table atoms get bigger. This is because ____________.
The atoms have more mass.
The atoms have more protons.
The atoms have more energy levels
The atoms have more nuetrons
Attract electrons to themselves in a bond
Mendeleev first arranged the Periodic Table by mass. Mosely late changed this by arranging the table by _____________. We still use this method today.
Atomic Number
Average Atomic Mass
Number of electrons
Electron Affinity
Which has the greater Electronegativity:
Cl or Al?
Cl
Al
Atoms and ions that are isoelectronic have
the same charge.
the same number of electrons.
the same number of protons.
no charge since the number of protons and electrons is equal.
Which of the following pairs of atoms and/or ions is isoelectronic?
Na and K
Cl and Cl-1
Ne and Na+1
O-2 and S-2
Ionic Bonding involves...
the transfer of protons
the transfer of neutrons
the transfer of electrons
none of these choices
What do atoms that form positive ions tend to do?
tend to lose electrons
tend to lose protons
tend to gain electrons
tend to gain protons
Magnesium Bromide is a (an) ________ compound
metallic
covalent
ionic
organic
How is the bond in F2 different from the bond in KCl ?
F2 is covalent and KCl is ionic
F2 is ionic and KCl is covalent
F2 is ionic and KCl is ionic
F2 is ionic and KCl is ionic
When naming COVALENT/MOLECULAR compounds, you use ______ to indicate the amount of each element in the name.
prefixes
coefficients
subscripts
superscripts
Phosphorous trichloride
PCl3
P3Cl
P3Cl3
PCl
The formula for the ionic compound of magnesium and nitrogen would be
MgN2
MgN
Mg3N2
MgN3
What is the formula for magnesium phosphide?
Mg3P2
Mg2P3
Mg2PO4
Mg3(PO4)2
What is the chemical name for NI3 ?
Nitrogen hydroxide
Nitrogen trinitride
Nitrogen triiodide
Triiodide mononitrogen
True or False: The correct chemical name for the formula PCl3 is monophosphorus tetrachloride.
True
False
Which is the correct molecular structure for carbon dioxide?
How many total valence electrons are participating in bonding in the molecule above?
8
4
2
3
What type of molecular geometry does water have?
Tetrahedral
Linear
Bent
Trigonal planar
Which substance has the weakest intermolecular forces?
Substance A, boiling point of 75 °C
Substance B, boiling point of 105 °C
Substance C, boiling point of 25 °C
Substance d, boiling point of 45 °C
The weaker the intermolecular forces of a substance the _____________ the boiling point
higher
lower
Which is NOT an intramolecular force?
Polar Covalent Bond
Nonpolar Covalent Bond
London Dispersion Force
Ionic Bond
Which has the weakest forces between particles (usually)?
ionic bonding
metallic bonding
covalent bonding
Which has the strongest forces between particles (usually)?
ionic bonding
metallic bonding
covalent bonding
The amount of energy required to raise the temperature 1ºC for every gram is called____?
Thermal Energy
Specific Heat
Temperature
Kinetic Energy
Water has a specific heat of 4184 J/gºC. Wood has a specific heat of 1760 J/gºC. What material needs more energy to raise the temperature 1ºC
Wood
Water
Both are the same
A student measures the mass of an 8.0 cm3 block of brown sugar to be 12.9 g. What is the density of the brown sugar?
1.6 g/cm3
0.62 g/cm3
103.2 g/cm3
0.54 g/cm3
How many grams of KNO3 will produce a saturated solution at 40 degrees?
75
55
65
85
At what temperature can you fully dissolve 140g of NaNO3?
62
73
81
You cannot determine this
Al(OH)3 --> Al2O3 + H2O
CUO + CO2 --> CuCO3
Ca + MgCl2 --> CaCl2 + Mg
Balance the equation.
__ N2 + __ H2 → __ NH3
The number are shown in order from left to right for the blanks.
2, 3, 1
2, 1, 3
3, 1, 2
1, 3, 2
Balance the following equation:
__ Al(OH)3 + __ HBr → __ AlBr3 + __ H2O
The number are shown in order from left to right to be inserted the blanks.
1, 1, 3, 3
1, 3, 1, 3
3, 1, 3, 1
3, 3, 1, 1
Na2O + P4O10 -------> Na3PO4
Write in words
sodium oxide and phosphorus oxide yield sodium phosphate
sodium oxide and tetraphosphorus decaoxide yield sodium phosphate
disodium oxide and phosphorus decaoxide yield sodium phosphate
sodium(I) oxide and tetraphosphorus decaoxide yield sodium(I) phosphate
