Chemistry Expert Q&A
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TZ
Tania Zamora
Jun 15, 2024
What are the two major roles of nuclear material in medicine?
A) Diagnosing diseases
B) Determining bone disorders
C) Treatment of tumors
D) Both a and c
A) Diagnosing diseases
B) Determining bone disorders
C) Treatment of tumors
D) Both a and c
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HP
Harrrison Pressly
Jun 15, 2024
What requirements must be met for combustion in a bomb calorimeter?
A) Activation energy must be met
B) Energy for a phase change and pyrolysis must be met
C) Neither a or b
D) Both a and b
A) Activation energy must be met
B) Energy for a phase change and pyrolysis must be met
C) Neither a or b
D) Both a and b
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KW
kaitlin whittaker
Jun 15, 2024
Pure substances are used to compute higher ADH than impure mixtures of substances.
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EH
Edwin Hilerio
Jun 15, 2024
What is a lethal dosage of arsenic?
A) 200 mg
B) 20 g
C) 200 g
D) 20 mg
A) 200 mg
B) 20 g
C) 200 g
D) 20 mg
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VN
Vayola Nicolas
Jun 15, 2024
What consumer products contain radioactive materials?
A) Smoke detectors
B) Static eliminators
C) Convection ovens
D) Both a and b above
A) Smoke detectors
B) Static eliminators
C) Convection ovens
D) Both a and b above
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CL
Chandler Lipscomb
Jun 15, 2024
If 2.5 grams of a radioactive isotope exist after 30 days in a storage vial, how much was present when it was sealed if the t½ = 6 days?
A) 80 grams
B) 60 grams
C) 40 grams
D) 20 grams
A) 80 grams
B) 60 grams
C) 40 grams
D) 20 grams
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VM
Viviana Mendoza
Jun 14, 2024
What kind of compound is KOH?
A) insoluble in water
B) soluble in non-aqueous solution
C) soluble in water
D) a molecular solid
A) insoluble in water
B) soluble in non-aqueous solution
C) soluble in water
D) a molecular solid
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VR
Victoria Rodriguez
Jun 14, 2024
How is a base defined?
A) as a compound that produces hydroxide ions
B) as a compound that produces H+ ions
C) as a compound with a pH below 7
D) as a compound with pH = 7
A) as a compound that produces hydroxide ions
B) as a compound that produces H+ ions
C) as a compound with a pH below 7
D) as a compound with pH = 7
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TP
Terrance Phillandra
Jun 14, 2024
What is the pH of a solution when its [H+] = 1.00 × 10-7?
A) 7
B) 1.7
C) 7.1
D) 0
A) 7
B) 1.7
C) 7.1
D) 0
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DF
Darian Fernandez
Jun 14, 2024
In general, when an aqueous solution is heated, what happens to the solubility of ionic compounds within it?
A) Solubility decreases.
B) Solubility increases.
C) Kinetic energy is added by the solute.
D) Kinetic energy is removed by the solute.
A) Solubility decreases.
B) Solubility increases.
C) Kinetic energy is added by the solute.
D) Kinetic energy is removed by the solute.
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MM
michael makrop
Jun 09, 2024
Classify cyclopentadienyl cation as aromatic, antiaromatic, or nonaromatic. Assume planarity of the π network.
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