Term
| The nuclear symbol 4/2 He, is also the symbol for designating an_____ |
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Definition
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Term
The symbol 0/-1e is a symbol used for an___
A) proton
B) neutron
C) gamma ray
D) beta particle
E) alpha particle |
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Definition
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Term
Which of the following types of radiation has the highest energy?
A) α-particles
B) β-particles
C) γ-rays
D) visible light
E) All of these have the same energy
. |
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Definition
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Term
The damaging effects of radiation on the body are a result of ________.
A) the formation of unstable ions
B) the formation of radioactive atoms in the body
C) transmutation reactions in the body
D) extensive damage to nerve cells
E) the production of radioactive sodium ions in the body |
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Definition
| formation of unstable ions |
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Term
The process in which a nucleus spontaneously breaks down by emitting radiation is known as ________.
A) transformation
B) translation
C) fusion
D) a chain reaction
E) radioactive decay |
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Definition
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Term
The nuclear reaction shown below is an example of what type of process?
224/90 Th → 220/88 Rn + 4/2 He
A) fusion
B) fission
C) translation
D) alpha decay
E) beta decay |
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Definition
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Term
The nuclear reaction is an example of...?
126/50Sn → 126/51Sb + ?
is an example of ________.
A) fusion
B) fission
C) gamma emission
D) alpha decay
E) beta decay |
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Definition
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Term
A patient receives 4 × 10^3 mrad of iodine-131, which emits β-particles. If the factor that adjusts for biological damage is 1 for β-particles, how many rems did the patient receive?
A) 4
B) 0.4
C) 0.3
D) 2
E) 40 |
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Definition
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Term
Iodine-123, which is used for diagnostic imaging in the thyroid, has a half-life of 13 h. If 50.0 mg of I-123 were prepared at 8:00 A.M. on Monday, how many mg remain at 10:00 A.M. on the following day?
A) 50.0 mg
B) 25.0 mg
C) 12.5 mg
D) 6.25 mg
E) 3.13 mg |
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Definition
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Term
Sodium-24 has a half-life of 15 h. How many hours is three half-lives?
A) 60 h
B) 45 h
C) 30 h
D) 15 h
E) 7.5 h |
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Definition
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Term
An imaging technique that detects the energy absorbed by hydrogen atoms in a magnetic field is known as ________.
A) positron emission tomography (PET)
B) computed tomography (CT)
C) magnetic resonance imaging (MRI)
D) radioactive tracer study
E) supermagnetic tomography (SMT) |
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Definition
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Term
When an atom of uranium-235 is bombarded with neutrons, it splits into smaller nuclei and produces a great amount of energy. This nuclear process is called ________.
A) fission
B) fusion
C) decomposition
D) chain reaction |
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Definition
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Term
In the sun, nuclei of hydrogen combine to form a larger nucleus and release a great amount of energy. The process is known as ________.
A) fission
B) fusion
C) metathesis
D) chain reaction |
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Definition
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Term
| In beta emission, the atomic number |
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Definition
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Term
| The common unit of radioactivity which is used to measure the biological damage is the ________. |
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Definition
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Term
| The time needed for a radioactive sample to decay to one-half of its original activity is called the ________. |
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Definition
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Term
True/False Questions
The correct symbol for hydrogen-3 is 3/2He |
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Definition
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Term
True/False Questions
One symptom of radiation sickness is an increased production of red blood cells |
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Definition
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Term
Which one of the following is characteristic of a base?
A) produces H3o+ in water
B) has a sour taste
C) has a slippery, soapy feel
D) turns blue litmus red
E) is insoluble in water |
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Definition
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Term
Which of the following is correctly identified?
A)NH3, strong acid
B)NaOH, strong base
C)HCl, weak acid
D)Ca(OH)2, strong acid
E) Ca , weak base |
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Definition
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Term
According to the Brønsted-Lowry definition, ________.
A) an acid is a proton acceptor
B) a base produces H+ ions in aqueous solutions
C) a base is a proton donor
D) a base is a proton acceptor
E) an acid acts as the solvent |
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Definition
| a base is a proton acceptor |
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Term
Ammonium hydroxide is a weak base because ________.
A) it forms a dilute solution
B) it is only slightly soluble in water
C) is a poor acceptor of protons
D) it dissociates only slightly in water
E) it is completely ionized in aqueous solution |
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Definition
| it dissociates only slightly in water |
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Term
Which of the following is the strongest acid?
A) H3PO4
B) NH4+
C) NaOH
D) HCL
E) HCl |
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Definition
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Term
) For Kw , the product of [H3O+ ] and [OH- ] is ________.
A) 1.0 × 10^-14
B) 1.0 × 10^-7
C) 1.0 × 10^-1
D) 1.0
E) 1.0 × 10^14 |
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Definition
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Term
What is the [OH-] in a solution that has a [H3O+]=1 x 10^-6 M?
A) 1 × 10^-2 M
B) 1 × 10^-6 M
C) 1 × 10^-8 M
D) 1 × 10^-10 M
E) 1 × 10^-12 M |
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Definition
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Term
The [ H3O+ ] of a solution with pH = 2.0 is ________.
A) 10 M
B) -10 M
C) 1 × 10^2 M
D) 1 × 10^-2 M
E) 1 × 10^-12 M |
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Definition
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Term
An acid and base react to form a salt and water in a(n) ________ reaction.
A) ionization
B) dissociation
C) oxidation
D) neutralization
E) reduction |
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Definition
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Term
When an acid reacts with a metal like Al, the products are ________.
A) water and a base
B) water and a salt
C) water and carbon dioxide
D) a salt and carbon dioxide
E) a salt and hydrogen |
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Definition
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Term
A 10.0 mL of 0.121 M H2SO4 is neutralized by 17.1 mL of KOH solution. The molarity of the KOH solution is ________.
A) 0.207 M
B) 0.414 M
C) 0.0708 M
D) 0.428 M
E) 0.142 M |
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Definition
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Term
The function of a buffer is to ________.
A) change color at the end point of a titration
B) maintain the pH of a solution
C) be a strong base
D) maintain a neutral pH
E) act as a strong acid |
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Definition
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Term
Normal blood pH is about ________.
A) 6.8
B) 7.0
C) 7.2
D) 7.4
E) 7.6 |
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Definition
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Term
What is the name of the medical condition of an asthmatic patient with a blood pH of 7.30?
A) respiratory acidosis
B) respiratory alkalosis
C) metabolic acidosis
D) metabolic alkalosis
E) diabetes mellitus |
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Definition
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Term
True/False Questions
HF is a strong acid |
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Definition
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Term
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Definition
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Term
| In any aqueous solution,[H3O+] = [OH-] . |
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Definition
| it is either acidic, basic or neutral |
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Term
The nuclear reaction shown below is an example of what type of process?
227/90 Th → 220/88 Rn + 4/2He
A) fusion
B) fission
C) translation
D) alpha decay
E) beta decay |
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Definition
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Term
| For many reactions of acids with bases, the resulting products are a salt and water. TRUE/FALSE |
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Definition
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Term
| Alkalosis is the blood condition in which the blood pH is higher than normal. |
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Definition
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Term
A formula that shows the arrangement of all bonds in a molecule is called a(n) ________.
A) molecular formula
B) expanded structural formula
C) condensed structural formula
D) condensed molecular formula
E) isomeric formula |
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Definition
| Expanded structural formula |
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Term
In the three-dimensional structure of methane, CH4 , the hydrogen atoms attached to a carbon atom are aligned ________.
A) in a straight line
B) at the corners of a square
C) at the corners of a tetrahedron
D) at the corners of a rectangle
E) at the corners of a cube |
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Definition
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Term
A hydrocarbon contains only the elements ________.
A) hydrogen and oxygen
B) carbon and oxygen
C) carbon and hydrogen
D) carbon, hydrogen, and oxygen
E) carbon, hydrogen, and nitrogen |
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Definition
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Term
Organic chemistry is the study of the chemistry of compounds of ________.
A) oxygen
B) hydrogen
C) living things
D) polymers
E) carbon |
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Definition
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Term
How many valence electrons does carbon have?
A) one
B) two
C) three
D) four
E) five |
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Definition
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Term
The carbon atoms in saturated hydrocarbons ________.
A) have only single bonds
B) contain at least one double bond
C) contain at least one triple bond
D) contain a benzene ring
E) contain both a double and a triple bond |
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Definition
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Term
An organic compound composed of carbon and hydrogen connected only by single bonds is an ________.
A) alkane
B) alkene
C) alkyne
D) aromatic compound
E) alcohol |
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Definition
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Term
| Which of these formulas is the expanded structural formula for an alkane with three carbon atoms? |
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Definition
E) H H H
↓ ↓ ↓
H - C - C - C - H
↓ ↓ ↓
H H H |
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Term
What is the IUPAC name of this compound?
CH3-CH2-CH2-CH2-CH2-CH2-CH3
A) hexane
B) heptane
C) octane
D) butane
E) pentane |
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Definition
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Term
A cycloalkane ________.
A) has two fewer carbon atoms than the corresponding alkane
B) has two fewer hydrogen atoms than the corresponding alkane
C) contains - CH3 groups joined by single bonds
D) always contains a three carbon ring
E) has no hydrogen atoms |
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Definition
| contains CH3 groups joined by single bonds |
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Term
The simplest cycloalkane has ________.
A) one carbon atom
B) two carbon atoms
C) three carbon atoms
D) four carbon atoms
E) five carbon atoms |
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Definition
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Term
Compounds that have the same molecular formula but different arrangements of atoms are called ________.
A) structural isomers
B) isotopes
C) indicators
D) isozymes
E) isometrics |
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Definition
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Term
What is the IUPAC name of this compound?
Cl
↓
CH3-CH-CH2-CH2-Cl
A) 1,1-dichlorobutane
B) 1,2,-dichlorobutane
C) 1,3-dichlorobutane
D) 1,4-dichlorobutane
E) dichlorobutane |
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Definition
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Term
What is the IUPAC name of....
CH3
↓
CH3 -C - CH2-CH3
↓
CH3
A) hexane
B) dimethylbutane
C) 3,3-dimethylbutane
D) 2,2-dimethylbutane
E) 2-dimethylbutane |
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Definition
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Term
The reaction of butane with oxygen is called ________.
A) substitution
B) addition
C) neutralization
D) combustion
E) titration |
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Definition
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Term
An alkene is an organic compound that contains a ________ bond.
A) single
B) double
C) triple
D) aromatic
E) hydrogen |
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Definition
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Term
An unsaturated compound always ________.
A) is a cycloalkane
B) contains a double bond
C) contains a triple bond
D) contains at least one double or triple bond
E) contains only single bonds |
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Definition
| contains at least one double or triple bond |
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Term
The IUPAC name for CH3—CH2-C=C-CH3 is ________.
A) 3-pentyne
B) 2-pentyne
C) pentyne
D) 1-methylbutyne
E) 2-propene |
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Definition
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Term
What is the IUPAC name of the compound shown below?
H CH2 - CH3
↓ ↓
C = C
↓ ↓
CH3- H
A) 2-pentene
B) trans-2-pentene
C) trans-3-pentene
D) cis-2-pentene
E) cis-3-pentene |
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Definition
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Term
The reaction of hydrogen (H2 ) and propene using a platinum catalyst is called ________.
A) combustion
B) substitution
C) addition
D) neutralization
E) condensation |
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Definition
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Term
The compound below is named ________.
⌬
A) cyclohexane
B) cyclohexene
C) cyclohexyne
D) benzene
E) cyclobenzene |
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Definition
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Term
| Organic chemistry is the study of the chemistry of compounds that contain primarily carbon and hydrogen. T or False |
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Definition
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Term
| Carbon has six valence electrons ( T or False) |
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Definition
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Term
| Methane has a tetrahedral structure ( T or False) |
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Definition
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